10 class english medium – Apical Classes

Chapter 9 Topic 1 9.1 REFLECTION OF LIGHT level 2

Arvind — Fri, 22 Nov 2024 02:43:44 +0000

Spherical Mirrors Quiz

1. What is a concave mirror? (2 Marks)

A) A mirror with an outward-curved reflecting surface

B) A mirror with an inward-curved reflecting surface

C) A mirror with a flat reflecting surface

D) A mirror with a circular reflecting surface

2. What is a convex mirror? (2 Marks)

A) A mirror with an inward-curved reflecting surface

B) A mirror with an outward-curved reflecting surface

C) A mirror with a flat reflecting surface

D) A mirror with a spherical reflecting surface

3. What is the point called where the reflecting surface of a spherical mirror intersects? (2 Marks)

A) Focal point

B) Centre of curvature

C) Pole

D) Principal axis

4. What is the centre of curvature in a spherical mirror? (2 Marks)

A) The point where the mirror intersects the principal axis

B) The point outside the mirror that is the centre of the sphere from which the mirror’s surface is a part

C) The point at which reflected rays meet

D) The point where parallel rays converge

5. In the case of a concave mirror, where is the centre of curvature located? (2 Marks)

A) Behind the mirror

B) In front of the mirror

C) On the principal axis

D) On the reflecting surface

6. Where is the centre of curvature located in the case of a convex mirror? (2 Marks)

A) In front of the mirror

B) Behind the mirror

C) On the principal axis

D) On the reflecting surface

7. What is the radius of curvature of a spherical mirror? (2 Marks)

A) The distance between the pole and the principal focus

B) The distance between the pole and the centre of curvature

C) The distance between the focus and the principal axis

D) The distance between the centre of curvature and the focus

8. What is the principal axis of a spherical mirror? (2 Marks)

A) The line passing through the pole and the focus

B) The line passing through the centre of curvature and the focus

C) The line passing through the pole and the centre of curvature

D) The line normal to the surface of the mirror

9. What is the principal focus of a concave mirror? (2 Marks)

A) The point where parallel rays reflected from the mirror converge

B) The point where parallel rays appear to diverge from

C) The point on the surface of the mirror

D) The point midway between the pole and the centre of curvature

10. In a convex mirror, the reflected rays appear to come from which point? (2 Marks)

A) The pole

B) The principal focus

C) The centre of curvature

D) A point on the principal axis

11. What is the distance between the pole and the principal focus of a spherical mirror called? (2 Marks)

A) Focal length

B) Radius of curvature

C) Principal axis

D) Aperture

12. What is the aperture of a spherical mirror? (2 Marks)

A) The curvature of the mirror’s surface

B) The diameter of the reflecting surface of the mirror

C) The focal length of the mirror

D) The distance between the pole and the centre of curvature

13. What is the relationship between the radius of curvature (R) and the focal length (f) of a spherical mirror? (2 Marks)

A) R = f

B) R = 2f

C) R = f²

D) R = f/2

14. Where does the principal focus of a spherical mirror lie in relation to the pole and the centre of curvature? (2 Marks)

A) At the pole

B) Midway between the pole and the centre of curvature

C) At the centre of curvature

D) At the principal axis

15. Which of the following is true for a concave mirror? (2 Marks)

A) The principal focus is behind the mirror

B) The principal focus is in front of the mirror

C) The focal length is negative

D) The radius of curvature is always smaller than the focal length

16. Which of the following is true for a convex mirror? (2 Marks)

A) The focal point is behind the mirror

B) The radius of curvature is positive

C) The focal length is negative

D) All of the above

17. Why does a concave mirror focus light? (2 Marks)

A) It reflects light away from the focus

B) It concentrates light at a single point in front of the mirror

C) It scatters light rays

D) It bends light away from the principal axis

18. What happens when sunlight is focused on a paper sheet using a concave mirror? (2 Marks)

A) The paper becomes cool

B) The paper reflects the sunlight

C) The paper catches fire due to the heat of the focused light

D) The paper gets wet

19. What does the principal axis of a spherical mirror represent? (2 Marks)

A) The axis that divides the mirror into two equal parts

B) The axis along which the mirror is mounted

C) The line passing through the pole and the centre of curvature

D) The axis that shows the direction of light rays

20. For small apertures, the focal length (f) and radius of curvature (R) of a spherical mirror are related by: (2 Marks)

A) f = 2R

B) f = R/2

C) R = 2f

D) f = R

chapter 9 Topic 1 9.1 REFLECTION OF LIGHT level 1

Arvind — Fri, 22 Nov 2024 02:39:34 +0000

Spherical Mirrors Quiz

1. What is a concave mirror? (2 Marks)

A) A mirror with an outward-curved reflecting surface

B) A mirror with an inward-curved reflecting surface

C) A mirror with a flat reflecting surface

D) A mirror with a circular reflecting surface

2. What is a convex mirror? (2 Marks)

A) A mirror with an inward-curved reflecting surface

B) A mirror with an outward-curved reflecting surface

C) A mirror with a flat reflecting surface

D) A mirror with a spherical reflecting surface

3. What is the point called where the reflecting surface of a spherical mirror intersects? (2 Marks)

A) Focal point

B) Centre of curvature

C) Pole

D) Principal axis

4. What is the centre of curvature in a spherical mirror? (2 Marks)

A) The point where the mirror intersects the principal axis

B) The point outside the mirror that is the centre of the sphere from which the mirror’s surface is a part

C) The point at which reflected rays meet

D) The point where parallel rays converge

5. In the case of a concave mirror, where is the centre of curvature located? (2 Marks)

A) Behind the mirror

B) In front of the mirror

C) On the principal axis

D) On the reflecting surface

6. Where is the centre of curvature located in the case of a convex mirror? (2 Marks)

A) In front of the mirror

B) Behind the mirror

C) On the principal axis

D) On the reflecting surface

7. What is the radius of curvature of a spherical mirror? (2 Marks)

A) The distance between the pole and the principal focus

B) The distance between the pole and the centre of curvature

C) The distance between the focus and the principal axis

D) The distance between the centre of curvature and the focus

8. What is the principal axis of a spherical mirror? (2 Marks)

A) The line passing through the pole and the focus

B) The line passing through the centre of curvature and the focus

C) The line passing through the pole and the centre of curvature

D) The line normal to the surface of the mirror

9. What is the principal focus of a concave mirror? (2 Marks)

A) The point where parallel rays reflected from the mirror converge

B) The point where parallel rays appear to diverge from

C) The point on the surface of the mirror

D) The point midway between the pole and the centre of curvature

10. In a convex mirror, the reflected rays appear to come from which point? (2 Marks)

A) The pole

B) The principal focus

C) The centre of curvature

D) A point on the principal axis

chapter 9 Topic 1 9.1 REFLECTION OF LIGHT level 2

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chapter 9 Topic 1 9.1 REFLECTION OF LIGHT level 2

10 class english medium science topic wise mcq ch 9

Arvind — Wed, 20 Nov 2024 07:12:31 +0000

10 class english medium science topic wise mcq ch 9

Topic 1 9.1 REFLECTION OF LIGHT

level 1

Reflection of Light Quiz

Quiz: Reflection of Light

1. Which of the following is a law of reflection of light? (2 Marks)

A) The angle of incidence is equal to the angle of reflection
B) The incident ray is perpendicular to the reflected ray
C) The reflected ray is twice the angle of the incident ray
D) The angle of incidence is always greater than the angle of reflection

2. In the laws of reflection, which of the following is true about the angle of incidence and the angle of reflection? (2 Marks)

A) They are always unequal
B) They are both equal
C) The angle of incidence is always greater
D) The angle of reflection is always greater

3. Which of the following is true about the image formed by a plane mirror? (2 Marks)

A) The image is real and inverted
B) The image is virtual and erect
C) The image is real and erect
D) The image size is twice the size of the object

4. What is the position of the image in a plane mirror in relation to the object? (2 Marks)

A) The image is formed behind the mirror at a distance equal to the object’s distance in front of the mirror
B) The image is formed in front of the mirror at half the distance of the object
C) The image is formed at the same distance in front of the mirror
D) The image is at a distance twice the object’s distance

5. What happens when light reflects from a highly polished surface like a mirror? (2 Marks)

A) It reflects very little light
B) It absorbs most of the light
C) It reflects most of the light
D) It bends light into a different direction

6. What is the term used for the spherical mirrors whose reflecting surface is part of a sphere? (2 Marks)

A) Convex mirrors
B) Concave mirrors
C) Spherical mirrors
D) Plane mirrors

7. Which of the following describes the image formed by a plane mirror? (2 Marks)

A) The image is always real, inverted, and magnified
B) The image is virtual, erect, and laterally inverted
C) The image is real, erect, and diminished
D) The image is real, upright, and reduced in size

8. In the case of spherical mirrors, which of the following is a characteristic of the image formed by a concave mirror? (2 Marks)

A) The image is always virtual and diminished
B) The image can be real or virtual depending on the object distance
C) The image is always inverted and smaller
D) The image is always virtual and erect

9. Which of the following is a property of the image formed by a plane mirror? (2 Marks)

A) The image is always magnified
B) The image is always virtual and the same size as the object
C) The image is real and inverted
D) The image is always smaller than the object

10. What is the nature of the reflected ray, normal to the mirror, and the incident ray in the law of reflection? (2 Marks)

A) They form a right angle with each other
B) They lie in the same plane
C) They form an acute angle with each other
D) They are parallel to each other

level 2

Reflection of Light – Spoon Mirror Quiz

Quiz: Reflection of Light – Spoon Mirror

1. When you view your face in the curved surface of a spoon, what type of image do you see? (2 Marks)

A) Virtual and erect
B) Real and inverted
C) Virtual and inverted
D) Real and erect

2. When you move the spoon slowly away from your face, what happens to the size of the image? (2 Marks)

A) The image becomes smaller
B) The image becomes larger
C) The image stays the same size
D) The image becomes blurry

3. When you reverse the spoon and look at the image, what happens to the appearance of the image? (2 Marks)

A) It becomes larger and erect
B) It becomes smaller and inverted
C) It becomes virtual and erect
D) It becomes real and inverted

4. What is the characteristic of the image when you look at the concave surface of the spoon? (2 Marks)

A) The image is larger and inverted
B) The image is smaller and upright
C) The image is smaller and inverted
D) The image is the same size as the object

5. What type of mirror is formed by the curved surface of a spoon? (2 Marks)

A) Plane mirror
B) Convex mirror
C) Concave mirror
D) Spherical mirror

6. When you view your face in the convex surface of the spoon, what happens to the image? (2 Marks)

A) The image appears larger and inverted
B) The image appears smaller and erect
C) The image appears smaller and inverted
D) The image appears the same size as the object

7. What happens to the nature of the image when you place the spoon’s concave surface close to your face? (2 Marks)

A) The image becomes real and inverted
B) The image becomes virtual and erect
C) The image becomes smaller and upright
D) The image becomes larger and inverted

8. When the spoon is moved away from your face with the concave surface facing you, the image appears to: (2 Marks)

A) Become larger and inverted
B) Become smaller and erect
C) Stay the same size
D) Become real and diminished

9. What happens to the image when you use the convex surface of the spoon and move it away from your face? (2 Marks)

A) The image remains the same size
B) The image becomes larger and inverted
C) The image becomes smaller and erect
D) The image becomes blurred

10. When the spoon is reversed to show its convex surface, the image formed is: (2 Marks)

A) Real, magnified, and upright
B) Virtual, diminished, and upright
C) Real, inverted, and diminished
D) Virtual, magnified, and inverted

LONG QUESTION

What are the properties of the image formed by a plane mirror?