Spherical Mirrors Quiz<\/title>\n <style>\n body {\n font-family: Arial, sans-serif;\n padding: 20px;\n background-color: #f4f4f4;\n }\n .question {\n margin: 20px 0;\n }\n .question label {\n font-weight: bold;\n }\n .question div {\n margin: 5px 0;\n }\n .result {\n font-weight: bold;\n margin-top: 20px;\n }\n .btn-submit {\n margin-top: 20px;\n padding: 10px 20px;\n background-color: #4CAF50;\n color: white;\n border: none;\n cursor: pointer;\n }\n .btn-submit:hover {\n background-color: #45a049;\n }\n <\/style>\n<\/head>\n<body>\n\n<h2>Spherical Mirrors Quiz<\/h2>\n<form id=\"quizForm\">\n \n <div class=\"question\">\n <label>1. What is a concave mirror? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q1\" value=\"A\"> A) A mirror with an outward-curved reflecting surface\n <\/div>\n <div>\n <input type=\"radio\" name=\"q1\" value=\"B\"> B) A mirror with an inward-curved reflecting surface\n <\/div>\n <div>\n <input type=\"radio\" name=\"q1\" value=\"C\"> C) A mirror with a flat reflecting surface\n <\/div>\n <div>\n <input type=\"radio\" name=\"q1\" value=\"D\"> D) A mirror with a circular reflecting surface\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>2. What is a convex mirror? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q2\" value=\"A\"> A) A mirror with an inward-curved reflecting surface\n <\/div>\n <div>\n <input type=\"radio\" name=\"q2\" value=\"B\"> B) A mirror with an outward-curved reflecting surface\n <\/div>\n <div>\n <input type=\"radio\" name=\"q2\" value=\"C\"> C) A mirror with a flat reflecting surface\n <\/div>\n <div>\n <input type=\"radio\" name=\"q2\" value=\"D\"> D) A mirror with a spherical reflecting surface\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>3. What is the point called where the reflecting surface of a spherical mirror intersects? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q3\" value=\"A\"> A) Focal point\n <\/div>\n <div>\n <input type=\"radio\" name=\"q3\" value=\"B\"> B) Centre of curvature\n <\/div>\n <div>\n <input type=\"radio\" name=\"q3\" value=\"C\"> C) Pole\n <\/div>\n <div>\n <input type=\"radio\" name=\"q3\" value=\"D\"> D) Principal axis\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>4. What is the centre of curvature in a spherical mirror? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q4\" value=\"A\"> A) The point where the mirror intersects the principal axis\n <\/div>\n <div>\n <input type=\"radio\" name=\"q4\" value=\"B\"> B) The point outside the mirror that is the centre of the sphere from which the mirror\u2019s surface is a part\n <\/div>\n <div>\n <input type=\"radio\" name=\"q4\" value=\"C\"> C) The point at which reflected rays meet\n <\/div>\n <div>\n <input type=\"radio\" name=\"q4\" value=\"D\"> D) The point where parallel rays converge\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>5. In the case of a concave mirror, where is the centre of curvature located? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q5\" value=\"A\"> A) Behind the mirror\n <\/div>\n <div>\n <input type=\"radio\" name=\"q5\" value=\"B\"> B) In front of the mirror\n <\/div>\n <div>\n <input type=\"radio\" name=\"q5\" value=\"C\"> C) On the principal axis\n <\/div>\n <div>\n <input type=\"radio\" name=\"q5\" value=\"D\"> D) On the reflecting surface\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>6. Where is the centre of curvature located in the case of a convex mirror? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q6\" value=\"A\"> A) In front of the mirror\n <\/div>\n <div>\n <input type=\"radio\" name=\"q6\" value=\"B\"> B) Behind the mirror\n <\/div>\n <div>\n <input type=\"radio\" name=\"q6\" value=\"C\"> C) On the principal axis\n <\/div>\n <div>\n <input type=\"radio\" name=\"q6\" value=\"D\"> D) On the reflecting surface\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>7. What is the radius of curvature of a spherical mirror? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q7\" value=\"A\"> A) The distance between the pole and the principal focus\n <\/div>\n <div>\n <input type=\"radio\" name=\"q7\" value=\"B\"> B) The distance between the pole and the centre of curvature\n <\/div>\n <div>\n <input type=\"radio\" name=\"q7\" value=\"C\"> C) The distance between the focus and the principal axis\n <\/div>\n <div>\n <input type=\"radio\" name=\"q7\" value=\"D\"> D) The distance between the centre of curvature and the focus\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>8. What is the principal axis of a spherical mirror? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q8\" value=\"A\"> A) The line passing through the pole and the focus\n <\/div>\n <div>\n <input type=\"radio\" name=\"q8\" value=\"B\"> B) The line passing through the centre of curvature and the focus\n <\/div>\n <div>\n <input type=\"radio\" name=\"q8\" value=\"C\"> C) The line passing through the pole and the centre of curvature\n <\/div>\n <div>\n <input type=\"radio\" name=\"q8\" value=\"D\"> D) The line normal to the surface of the mirror\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>9. What is the principal focus of a concave mirror? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q9\" value=\"A\"> A) The point where parallel rays reflected from the mirror converge\n <\/div>\n <div>\n <input type=\"radio\" name=\"q9\" value=\"B\"> B) The point where parallel rays appear to diverge from\n <\/div>\n <div>\n <input type=\"radio\" name=\"q9\" value=\"C\"> C) The point on the surface of the mirror\n <\/div>\n <div>\n <input type=\"radio\" name=\"q9\" value=\"D\"> D) The point midway between the pole and the centre of curvature\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>10. In a convex mirror, the reflected rays appear to come from which point? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q10\" value=\"A\"> A) The pole\n <\/div>\n <div>\n <input type=\"radio\" name=\"q10\" value=\"B\"> B) The principal focus\n <\/div>\n <div>\n <input type=\"radio\" name=\"q10\" value=\"C\"> C) The centre of curvature\n <\/div>\n <div>\n <input type=\"radio\" name=\"q10\" value=\"D\"> D) A point on the principal axis\n <\/div>\n <\/div>\n\n \n <div class=\"question\">\n <label>11. What is the distance between the pole and the principal focus of a spherical mirror called? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q11\" value=\"A\"> A) Focal length\n <\/div>\n <div>\n <input type=\"radio\" name=\"q11\" value=\"B\"> B) Radius of curvature\n <\/div>\n <div>\n <input type=\"radio\" name=\"q11\" value=\"C\"> C) Principal axis\n <\/div>\n <div>\n <input type=\"radio\" name=\"q11\" value=\"D\"> D) Aperture\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>12. What is the aperture of a spherical mirror? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q12\" value=\"A\"> A) The curvature of the mirror\u2019s surface\n <\/div>\n <div>\n <input type=\"radio\" name=\"q12\" value=\"B\"> B) The diameter of the reflecting surface of the mirror\n <\/div>\n <div>\n <input type=\"radio\" name=\"q12\" value=\"C\"> C) The focal length of the mirror\n <\/div>\n <div>\n <input type=\"radio\" name=\"q12\" value=\"D\"> D) The distance between the pole and the centre of curvature\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>13. What is the relationship between the radius of curvature (R) and the focal length (f) of a spherical mirror? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q13\" value=\"A\"> A) R = f\n <\/div>\n <div>\n <input type=\"radio\" name=\"q13\" value=\"B\"> B) R = 2f\n <\/div>\n <div>\n <input type=\"radio\" name=\"q13\" value=\"C\"> C) R = f\u00b2\n <\/div>\n <div>\n <input type=\"radio\" name=\"q13\" value=\"D\"> D) R = f\/2\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>14. Where does the principal focus of a spherical mirror lie in relation to the pole and the centre of curvature? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q14\" value=\"A\"> A) At the pole\n <\/div>\n <div>\n <input type=\"radio\" name=\"q14\" value=\"B\"> B) Midway between the pole and the centre of curvature\n <\/div>\n <div>\n <input type=\"radio\" name=\"q14\" value=\"C\"> C) At the centre of curvature\n <\/div>\n <div>\n <input type=\"radio\" name=\"q14\" value=\"D\"> D) At the principal axis\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>15. Which of the following is true for a concave mirror? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q15\" value=\"A\"> A) The principal focus is behind the mirror\n <\/div>\n <div>\n <input type=\"radio\" name=\"q15\" value=\"B\"> B) The principal focus is in front of the mirror\n <\/div>\n <div>\n <input type=\"radio\" name=\"q15\" value=\"C\"> C) The focal length is negative\n <\/div>\n <div>\n <input type=\"radio\" name=\"q15\" value=\"D\"> D) The radius of curvature is always smaller than the focal length\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>16. Which of the following is true for a convex mirror? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q16\" value=\"A\"> A) The focal point is behind the mirror\n <\/div>\n <div>\n <input type=\"radio\" name=\"q16\" value=\"B\"> B) The radius of curvature is positive\n <\/div>\n <div>\n <input type=\"radio\" name=\"q16\" value=\"C\"> C) The focal length is negative\n <\/div>\n <div>\n <input type=\"radio\" name=\"q16\" value=\"D\"> D) All of the above\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>17. Why does a concave mirror focus light? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q17\" value=\"A\"> A) It reflects light away from the focus\n <\/div>\n <div>\n <input type=\"radio\" name=\"q17\" value=\"B\"> B) It concentrates light at a single point in front of the mirror\n <\/div>\n <div>\n <input type=\"radio\" name=\"q17\" value=\"C\"> C) It scatters light rays\n <\/div>\n <div>\n <input type=\"radio\" name=\"q17\" value=\"D\"> D) It bends light away from the principal axis\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>18. What happens when sunlight is focused on a paper sheet using a concave mirror? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q18\" value=\"A\"> A) The paper becomes cool\n <\/div>\n <div>\n <input type=\"radio\" name=\"q18\" value=\"B\"> B) The paper reflects the sunlight\n <\/div>\n <div>\n <input type=\"radio\" name=\"q18\" value=\"C\"> C) The paper catches fire due to the heat of the focused light\n <\/div>\n <div>\n <input type=\"radio\" name=\"q18\" value=\"D\"> D) The paper gets wet\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>19. What does the principal axis of a spherical mirror represent? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q19\" value=\"A\"> A) The axis that divides the mirror into two equal parts\n <\/div>\n <div>\n <input type=\"radio\" name=\"q19\" value=\"B\"> B) The axis along which the mirror is mounted\n <\/div>\n <div>\n <input type=\"radio\" name=\"q19\" value=\"C\"> C) The line passing through the pole and the centre of curvature\n <\/div>\n <div>\n <input type=\"radio\" name=\"q19\" value=\"D\"> D) The axis that shows the direction of light rays\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>20. For small apertures, the focal length (f) and radius of curvature (R) of a spherical mirror are related by: (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q20\" value=\"A\"> A) f = 2R\n <\/div>\n <div>\n <input type=\"radio\" name=\"q20\" value=\"B\"> B) f = R\/2\n <\/div>\n <div>\n <input type=\"radio\" name=\"q20\" value=\"C\"> C) R = 2f\n <\/div>\n <div>\n <input type=\"radio\" name=\"q20\" value=\"D\"> D) f = R\n <\/div>\n <\/div>\n\n <button type=\"button\" class=\"btn-submit\" onclick=\"checkAnswers()\">Submit<\/button>\n<\/form>\n\n<div id=\"result\" class=\"result\"><\/div>\n\n<script>\n function checkAnswers() {\n var score = 0;\n var correctAnswers = {\n q1: \"B\",\n q2: \"B\",\n q3: \"C\",\n q4: \"B\",\n q5: \"B\",\n q6: \"B\",\n q7: \"B\",\n q8: \"C\",\n q9: \"A\",\n q10: \"D\",\n q11: \"A\",\n q12: \"B\",\n q13: \"B\",\n q14: \"B\",\n q15: \"B\",\n q16: \"D\",\n q17: \"B\",\n q18: \"C\",\n q19: \"C\",\n q20: \"C\"\n };\n\n \/\/ Loop through each question and check if the selected answer is correct\n for (var i = 1; i <= 20; i++) {\n var userAnswer = document.querySelector(`input[name=\"q${i}\"]:checked`);\n if (userAnswer) {\n if (userAnswer.value === correctAnswers[`q${i}`]) {\n score += 2; \/\/ 2 marks for correct answers\n }\n }\n }\n\n \/\/ Display the result and show the score\n var resultText = `Your total score is: ${score} out of 40. <br><br>`;\n\n \/\/ Display correct answers after the test\n for (var i = 1; i <= 20; i++) {\n var selectedAnswer = document.querySelector(`input[name=\"q${i}\"]:checked`);\n resultText += `Q${i}: ${selectedAnswer ? selectedAnswer.nextSibling.nodeValue.trim() : 'No answer selected'}<br>`;\n }\n\n document.getElementById('result').innerHTML = resultText;\n }\n<\/script>\n\n<\/body>\n<\/html>\n\n","protected":false},"excerpt":{"rendered":"<p>Spherical Mirrors Quiz Spherical Mirrors Quiz 1. What is a […]<\/p>\n","protected":false},"author":1,"featured_media":19,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-72","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-10-class-english-medium"],"_links":{"self":[{"href":"https:\/\/apicalclasses.com\/wp-json\/wp\/v2\/posts\/72","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/apicalclasses.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/apicalclasses.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/apicalclasses.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/apicalclasses.com\/wp-json\/wp\/v2\/comments?post=72"}],"version-history":[{"count":3,"href":"https:\/\/apicalclasses.com\/wp-json\/wp\/v2\/posts\/72\/revisions"}],"predecessor-version":[{"id":757,"href":"https:\/\/apicalclasses.com\/wp-json\/wp\/v2\/posts\/72\/revisions\/757"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/apicalclasses.com\/wp-json\/wp\/v2\/media\/19"}],"wp:attachment":[{"href":"https:\/\/apicalclasses.com\/wp-json\/wp\/v2\/media?parent=72"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/apicalclasses.com\/wp-json\/wp\/v2\/categories?post=72"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/apicalclasses.com\/wp-json\/wp\/v2\/tags?post=72"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}

{"id":72,"date":"2024-11-22T02:43:44","date_gmt":"2024-11-22T02:43:44","guid":{"rendered":"https:\/\/apicalclasses.com\/?p=72"},"modified":"2024-11-29T17:29:42","modified_gmt":"2024-11-29T11:59:42","slug":"topic-1-9-1-reflection-of-light-level-2","status":"publish","type":"post","link":"https:\/\/apicalclasses.com\/topic-1-9-1-reflection-of-light-level-2\/","title":{"rendered":"Chapter 9 Topic 1 9.1 REFLECTION OF LIGHT level 2"},"content":{"rendered":"\n\n\n\n \n \n Spherical Mirrors Quiz<\/title>\n <style>\n body {\n font-family: Arial, sans-serif;\n padding: 20px;\n background-color: #f4f4f4;\n }\n .question {\n margin: 20px 0;\n }\n .question label {\n font-weight: bold;\n }\n .question div {\n margin: 5px 0;\n }\n .result {\n font-weight: bold;\n margin-top: 20px;\n }\n .btn-submit {\n margin-top: 20px;\n padding: 10px 20px;\n background-color: #4CAF50;\n color: white;\n border: none;\n cursor: pointer;\n }\n .btn-submit:hover {\n background-color: #45a049;\n }\n <\/style>\n<\/head>\n<body>\n\n<h2>Spherical Mirrors Quiz<\/h2>\n<form id=\"quizForm\">\n \n <div class=\"question\">\n <label>1. What is a concave mirror? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q1\" value=\"A\"> A) A mirror with an outward-curved reflecting surface\n <\/div>\n <div>\n <input type=\"radio\" name=\"q1\" value=\"B\"> B) A mirror with an inward-curved reflecting surface\n <\/div>\n <div>\n <input type=\"radio\" name=\"q1\" value=\"C\"> C) A mirror with a flat reflecting surface\n <\/div>\n <div>\n <input type=\"radio\" name=\"q1\" value=\"D\"> D) A mirror with a circular reflecting surface\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>2. What is a convex mirror? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q2\" value=\"A\"> A) A mirror with an inward-curved reflecting surface\n <\/div>\n <div>\n <input type=\"radio\" name=\"q2\" value=\"B\"> B) A mirror with an outward-curved reflecting surface\n <\/div>\n <div>\n <input type=\"radio\" name=\"q2\" value=\"C\"> C) A mirror with a flat reflecting surface\n <\/div>\n <div>\n <input type=\"radio\" name=\"q2\" value=\"D\"> D) A mirror with a spherical reflecting surface\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>3. What is the point called where the reflecting surface of a spherical mirror intersects? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q3\" value=\"A\"> A) Focal point\n <\/div>\n <div>\n <input type=\"radio\" name=\"q3\" value=\"B\"> B) Centre of curvature\n <\/div>\n <div>\n <input type=\"radio\" name=\"q3\" value=\"C\"> C) Pole\n <\/div>\n <div>\n <input type=\"radio\" name=\"q3\" value=\"D\"> D) Principal axis\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>4. What is the centre of curvature in a spherical mirror? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q4\" value=\"A\"> A) The point where the mirror intersects the principal axis\n <\/div>\n <div>\n <input type=\"radio\" name=\"q4\" value=\"B\"> B) The point outside the mirror that is the centre of the sphere from which the mirror\u2019s surface is a part\n <\/div>\n <div>\n <input type=\"radio\" name=\"q4\" value=\"C\"> C) The point at which reflected rays meet\n <\/div>\n <div>\n <input type=\"radio\" name=\"q4\" value=\"D\"> D) The point where parallel rays converge\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>5. In the case of a concave mirror, where is the centre of curvature located? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q5\" value=\"A\"> A) Behind the mirror\n <\/div>\n <div>\n <input type=\"radio\" name=\"q5\" value=\"B\"> B) In front of the mirror\n <\/div>\n <div>\n <input type=\"radio\" name=\"q5\" value=\"C\"> C) On the principal axis\n <\/div>\n <div>\n <input type=\"radio\" name=\"q5\" value=\"D\"> D) On the reflecting surface\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>6. Where is the centre of curvature located in the case of a convex mirror? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q6\" value=\"A\"> A) In front of the mirror\n <\/div>\n <div>\n <input type=\"radio\" name=\"q6\" value=\"B\"> B) Behind the mirror\n <\/div>\n <div>\n <input type=\"radio\" name=\"q6\" value=\"C\"> C) On the principal axis\n <\/div>\n <div>\n <input type=\"radio\" name=\"q6\" value=\"D\"> D) On the reflecting surface\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>7. What is the radius of curvature of a spherical mirror? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q7\" value=\"A\"> A) The distance between the pole and the principal focus\n <\/div>\n <div>\n <input type=\"radio\" name=\"q7\" value=\"B\"> B) The distance between the pole and the centre of curvature\n <\/div>\n <div>\n <input type=\"radio\" name=\"q7\" value=\"C\"> C) The distance between the focus and the principal axis\n <\/div>\n <div>\n <input type=\"radio\" name=\"q7\" value=\"D\"> D) The distance between the centre of curvature and the focus\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>8. What is the principal axis of a spherical mirror? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q8\" value=\"A\"> A) The line passing through the pole and the focus\n <\/div>\n <div>\n <input type=\"radio\" name=\"q8\" value=\"B\"> B) The line passing through the centre of curvature and the focus\n <\/div>\n <div>\n <input type=\"radio\" name=\"q8\" value=\"C\"> C) The line passing through the pole and the centre of curvature\n <\/div>\n <div>\n <input type=\"radio\" name=\"q8\" value=\"D\"> D) The line normal to the surface of the mirror\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>9. What is the principal focus of a concave mirror? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q9\" value=\"A\"> A) The point where parallel rays reflected from the mirror converge\n <\/div>\n <div>\n <input type=\"radio\" name=\"q9\" value=\"B\"> B) The point where parallel rays appear to diverge from\n <\/div>\n <div>\n <input type=\"radio\" name=\"q9\" value=\"C\"> C) The point on the surface of the mirror\n <\/div>\n <div>\n <input type=\"radio\" name=\"q9\" value=\"D\"> D) The point midway between the pole and the centre of curvature\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>10. In a convex mirror, the reflected rays appear to come from which point? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q10\" value=\"A\"> A) The pole\n <\/div>\n <div>\n <input type=\"radio\" name=\"q10\" value=\"B\"> B) The principal focus\n <\/div>\n <div>\n <input type=\"radio\" name=\"q10\" value=\"C\"> C) The centre of curvature\n <\/div>\n <div>\n <input type=\"radio\" name=\"q10\" value=\"D\"> D) A point on the principal axis\n <\/div>\n <\/div>\n\n \n <div class=\"question\">\n <label>11. What is the distance between the pole and the principal focus of a spherical mirror called? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q11\" value=\"A\"> A) Focal length\n <\/div>\n <div>\n <input type=\"radio\" name=\"q11\" value=\"B\"> B) Radius of curvature\n <\/div>\n <div>\n <input type=\"radio\" name=\"q11\" value=\"C\"> C) Principal axis\n <\/div>\n <div>\n <input type=\"radio\" name=\"q11\" value=\"D\"> D) Aperture\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>12. What is the aperture of a spherical mirror? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q12\" value=\"A\"> A) The curvature of the mirror\u2019s surface\n <\/div>\n <div>\n <input type=\"radio\" name=\"q12\" value=\"B\"> B) The diameter of the reflecting surface of the mirror\n <\/div>\n <div>\n <input type=\"radio\" name=\"q12\" value=\"C\"> C) The focal length of the mirror\n <\/div>\n <div>\n <input type=\"radio\" name=\"q12\" value=\"D\"> D) The distance between the pole and the centre of curvature\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>13. What is the relationship between the radius of curvature (R) and the focal length (f) of a spherical mirror? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q13\" value=\"A\"> A) R = f\n <\/div>\n <div>\n <input type=\"radio\" name=\"q13\" value=\"B\"> B) R = 2f\n <\/div>\n <div>\n <input type=\"radio\" name=\"q13\" value=\"C\"> C) R = f\u00b2\n <\/div>\n <div>\n <input type=\"radio\" name=\"q13\" value=\"D\"> D) R = f\/2\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>14. Where does the principal focus of a spherical mirror lie in relation to the pole and the centre of curvature? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q14\" value=\"A\"> A) At the pole\n <\/div>\n <div>\n <input type=\"radio\" name=\"q14\" value=\"B\"> B) Midway between the pole and the centre of curvature\n <\/div>\n <div>\n <input type=\"radio\" name=\"q14\" value=\"C\"> C) At the centre of curvature\n <\/div>\n <div>\n <input type=\"radio\" name=\"q14\" value=\"D\"> D) At the principal axis\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>15. Which of the following is true for a concave mirror? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q15\" value=\"A\"> A) The principal focus is behind the mirror\n <\/div>\n <div>\n <input type=\"radio\" name=\"q15\" value=\"B\"> B) The principal focus is in front of the mirror\n <\/div>\n <div>\n <input type=\"radio\" name=\"q15\" value=\"C\"> C) The focal length is negative\n <\/div>\n <div>\n <input type=\"radio\" name=\"q15\" value=\"D\"> D) The radius of curvature is always smaller than the focal length\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>16. Which of the following is true for a convex mirror? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q16\" value=\"A\"> A) The focal point is behind the mirror\n <\/div>\n <div>\n <input type=\"radio\" name=\"q16\" value=\"B\"> B) The radius of curvature is positive\n <\/div>\n <div>\n <input type=\"radio\" name=\"q16\" value=\"C\"> C) The focal length is negative\n <\/div>\n <div>\n <input type=\"radio\" name=\"q16\" value=\"D\"> D) All of the above\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>17. Why does a concave mirror focus light? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q17\" value=\"A\"> A) It reflects light away from the focus\n <\/div>\n <div>\n <input type=\"radio\" name=\"q17\" value=\"B\"> B) It concentrates light at a single point in front of the mirror\n <\/div>\n <div>\n <input type=\"radio\" name=\"q17\" value=\"C\"> C) It scatters light rays\n <\/div>\n <div>\n <input type=\"radio\" name=\"q17\" value=\"D\"> D) It bends light away from the principal axis\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>18. What happens when sunlight is focused on a paper sheet using a concave mirror? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q18\" value=\"A\"> A) The paper becomes cool\n <\/div>\n <div>\n <input type=\"radio\" name=\"q18\" value=\"B\"> B) The paper reflects the sunlight\n <\/div>\n <div>\n <input type=\"radio\" name=\"q18\" value=\"C\"> C) The paper catches fire due to the heat of the focused light\n <\/div>\n <div>\n <input type=\"radio\" name=\"q18\" value=\"D\"> D) The paper gets wet\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>19. What does the principal axis of a spherical mirror represent? (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q19\" value=\"A\"> A) The axis that divides the mirror into two equal parts\n <\/div>\n <div>\n <input type=\"radio\" name=\"q19\" value=\"B\"> B) The axis along which the mirror is mounted\n <\/div>\n <div>\n <input type=\"radio\" name=\"q19\" value=\"C\"> C) The line passing through the pole and the centre of curvature\n <\/div>\n <div>\n <input type=\"radio\" name=\"q19\" value=\"D\"> D) The axis that shows the direction of light rays\n <\/div>\n <\/div>\n\n <div class=\"question\">\n <label>20. For small apertures, the focal length (f) and radius of curvature (R) of a spherical mirror are related by: (2 Marks)<\/label><br>\n <div>\n <input type=\"radio\" name=\"q20\" value=\"A\"> A) f = 2R\n <\/div>\n <div>\n <input type=\"radio\" name=\"q20\" value=\"B\"> B) f = R\/2\n <\/div>\n <div>\n <input type=\"radio\" name=\"q20\" value=\"C\"> C) R = 2f\n <\/div>\n <div>\n <input type=\"radio\" name=\"q20\" value=\"D\"> D) f = R\n <\/div>\n <\/div>\n\n <button type=\"button\" class=\"btn-submit\" onclick=\"checkAnswers()\">Submit<\/button>\n<\/form>\n\n<div id=\"result\" class=\"result\"><\/div>\n\n<script>\n function checkAnswers() {\n var score = 0;\n var correctAnswers = {\n q1: \"B\",\n q2: \"B\",\n q3: \"C\",\n q4: \"B\",\n q5: \"B\",\n q6: \"B\",\n q7: \"B\",\n q8: \"C\",\n q9: \"A\",\n q10: \"D\",\n q11: \"A\",\n q12: \"B\",\n q13: \"B\",\n q14: \"B\",\n q15: \"B\",\n q16: \"D\",\n q17: \"B\",\n q18: \"C\",\n q19: \"C\",\n q20: \"C\"\n };\n\n \/\/ Loop through each question and check if the selected answer is correct\n for (var i = 1; i <= 20; i++) {\n var userAnswer = document.querySelector(`input[name=\"q${i}\"]:checked`);\n if (userAnswer) {\n if (userAnswer.value === correctAnswers[`q${i}`]) {\n score += 2; \/\/ 2 marks for correct answers\n }\n }\n }\n\n \/\/ Display the result and show the score\n var resultText = `Your total score is: ${score} out of 40. <br><br>`;\n\n \/\/ Display correct answers after the test\n for (var i = 1; i <= 20; i++) {\n var selectedAnswer = document.querySelector(`input[name=\"q${i}\"]:checked`);\n resultText += `Q${i}: ${selectedAnswer ? selectedAnswer.nextSibling.nodeValue.trim() : 'No answer selected'}<br>`;\n }\n\n document.getElementById('result').innerHTML = resultText;\n }\n<\/script>\n\n<\/body>\n<\/html>\n\n","protected":false},"excerpt":{"rendered":"<p>Spherical Mirrors Quiz Spherical Mirrors Quiz 1. What is a […]<\/p>\n","protected":false},"author":1,"featured_media":19,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-72","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-10-class-english-medium"],"_links":{"self":[{"href":"https:\/\/apicalclasses.com\/wp-json\/wp\/v2\/posts\/72","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/apicalclasses.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/apicalclasses.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/apicalclasses.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/apicalclasses.com\/wp-json\/wp\/v2\/comments?post=72"}],"version-history":[{"count":3,"href":"https:\/\/apicalclasses.com\/wp-json\/wp\/v2\/posts\/72\/revisions"}],"predecessor-version":[{"id":757,"href":"https:\/\/apicalclasses.com\/wp-json\/wp\/v2\/posts\/72\/revisions\/757"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/apicalclasses.com\/wp-json\/wp\/v2\/media\/19"}],"wp:attachment":[{"href":"https:\/\/apicalclasses.com\/wp-json\/wp\/v2\/media?parent=72"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/apicalclasses.com\/wp-json\/wp\/v2\/categories?post=72"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/apicalclasses.com\/wp-json\/wp\/v2\/tags?post=72"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}