Chapter 9 Topic 1 9.1 REFLECTION OF LIGHT level 2

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

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Chapter 9 Topic 1 9.1 REFLECTION OF LIGHT level 2

Spherical Mirrors Quiz

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