Reflection of Light by Curved Surfaces – CBSE Class 10
1. A concave mirror is also called a
A) Diverging mirror
B) Converging mirror
C) Plane mirror
D) Convex lens
Answer: Converging mirror
2. A convex mirror is also called a
A) Diverging mirror
B) Converging mirror
C) Plane mirror
D) Concave mirror
Answer: Diverging mirror
3. Which type of mirror can form a real image?
A) Convex mirror
B) Concave mirror
C) Plane mirror
D) All mirrors
Answer: Concave mirror
4. Which type of mirror always forms a virtual image?
A) Concave mirror
B) Convex mirror
C) Plane mirror
D) None
Answer: Convex mirror
5. Focal length of a concave mirror is
A) Positive
B) Negative
C) Zero
D) Infinite
Answer: Positive
6. Focal length of a convex mirror is
A) Positive
B) Negative
C) Zero
D) Infinite
Answer: Negative
7. Principal focus of a concave mirror is the point where
A) Reflected rays meet
B) Incident rays meet
C) Image is formed
D) Object is placed
Answer: Reflected rays meet
8. Principal focus of a convex mirror is the point where
A) Reflected rays meet
B) Reflected rays appear to meet
C) Object is placed
D) Image is real
Answer: Reflected rays appear to meet
9. Radius of curvature of a spherical mirror is
A) Half the focal length
B) Twice the focal length
C) Equal to focal length
D) Zero
Answer: Twice the focal length
10. Mirror formula is
A) 1/f = 1/v + 1/u
B) 1/f = 1/v – 1/u
C) 1/f = 1/u – 1/v
D) v = u + f
Answer: 1/f = 1/v + 1/u
11. Magnification of a mirror is given by
A) m = v/u
B) m = -v/u
C) m = u/v
D) m = f/v
Answer: m = -v/u
12. In a concave mirror, an object at infinity forms an image at
A) Infinity
B) Focal point
C) Center of curvature
D) Between focus and pole
Answer: Focal point
13. In a concave mirror, an object at focus forms an image at
A) Infinity
B) Focus
C) Center of curvature
D) At pole
Answer: Infinity
14. In a concave mirror, an object beyond center of curvature forms image
A) Between focus and pole
B) At focus
C) Between focus and center of curvature
D) At infinity
Answer: Between focus and center of curvature
15. In a concave mirror, an object at center of curvature forms image
A) At focus
B) At center of curvature
C) Between focus and center
D) At infinity
Answer: At center of curvature
16. In a concave mirror, an object between focus and pole forms image
A) Real, inverted, magnified
B) Virtual, erect, magnified
C) Real, inverted, diminished
D) Virtual, inverted, diminished
Answer: Virtual, erect, magnified
17. Convex mirrors always produce images which are
A) Real, inverted
B) Virtual, erect
C) Real, magnified
D) Virtual, inverted
Answer: Virtual, erect
18. Convex mirrors are used as
A) Rear-view mirrors
B) Shaving mirrors
C) Makeup mirrors
D) Projector mirrors
Answer: Rear-view mirrors
19. A concave mirror can be used to focus sunlight to
A) Spread light
B) Burn objects
C) Reflect light
D) Form virtual image
Answer: Burn objects
20. Mirror equation holds for
A) Concave mirrors
B) Convex mirrors
C) Both concave and convex mirrors
D) Only plane mirrors
Answer: Both concave and convex mirrors
21. Sign of magnification is positive for
A) Real image
B) Virtual image
C) Inverted image
D) Real and inverted
Answer: Virtual image
22. Sign of magnification is negative for
A) Real image
B) Virtual image
C) Erect image
D) Magnified image
Answer: Real image
23. Focal length of a plane mirror is
A) Zero
B) Infinite
C) Positive
D) Negative
Answer: Infinite
24. Image formed by a plane mirror is
A) Real, inverted
B) Virtual, erect
C) Real, erect
D) Magnified
Answer: Virtual, erect
25. A concave mirror is used as a
A) Shaving mirror
B) Rear-view mirror
C) Dressing mirror
D) Car side mirror
Answer: Shaving mirror
26. Pole of a mirror is
A) Center of mirror
B) Vertex of mirror
C) Focus
D) Center of curvature
Answer: Vertex of mirror
27. Center of curvature of mirror lies
A) On surface of mirror
B) On principal axis
C) At infinity
D) At focus
Answer: On principal axis
28. A real image formed by concave mirror is
A) Erect
B) Inverted
C) Magnified or diminished
D) Both B and C
Answer: Both B and C
29. A virtual image formed by concave mirror is
A) Inverted
B) Erect
C) Magnified
D) Both B and C
Answer: Both B and C
30. A convex mirror always forms image
A) At focus
B) Between pole and focus
C) Between pole and focus, virtual
D) At infinity
Answer: Between pole and focus, virtual
31. A concave mirror of focal length 10 cm has radius of curvature
A) 5 cm
B) 10 cm
C) 20 cm
D) 40 cm
Answer: 20 cm
32. For a convex mirror, image distance is
A) Always positive
B) Always negative
C) Can be positive or negative
D) Zero
Answer: Always negative
33. Magnification of image formed by convex mirror is
A) Greater than 1
B) Less than 1
C) Equal to 1
D) Negative
Answer: Less than 1
34. Image formed by plane mirror is
A) Laterally inverted
B) Erect
C) Same size as object
D) All of these
Answer: All of these
35. Mirror formula in terms of radius of curvature is
A) f = R/2
B) f = 2R
C) f = R
D) f = R²
Answer: f = R/2
36. For concave mirror, focal length is
A) Positive
B) Negative
C) Zero
D) Infinite
Answer: Positive
37. For convex mirror, focal length is
A) Positive
B) Negative
C) Zero
D) Infinite
Answer: Negative
38. For concave mirror, a real image is
A) Formed on same side as object
B) Formed on opposite side
C) Virtual
D) Erect
Answer: Formed on same side as object
39. For convex mirror, image is always
A) Real
B) Virtual
C) Inverted
D) Magnified
Answer: Virtual
40. Concave mirrors are used in torches to
A) Converge light into beam
B) Diverge light
C) Form virtual image
D) None of these
Answer: Converge light into beam
41. Mirror which spreads light is
A) Concave
B) Convex
C) Plane
D) None
Answer: Convex
42. Pole of mirror is denoted by
A) F
B) C
C) P
D) R
Answer: P
43. Principal axis of mirror passes through
A) Pole and focus
B) Center of curvature only
C) Focus only
D) None
Answer: Pole and focus
44. Radius of curvature is distance between
A) Pole and focus
B) Pole and center of curvature
C) Focus and center of curvature
D) Focus and object
Answer: Pole and center of curvature
45. In mirror formula, u is
A) Image distance
B) Object distance
C) Focal length
D) Radius
Answer: Object distance
46. In mirror formula, v is
A) Image distance
B) Object distance
C) Focal length
D) Radius
Answer: Image distance
47. In mirror formula, f is
A) Image distance
B) Object distance
C) Focal length
D) Radius
Answer: Focal length
48. Concave mirror forms magnified image of object placed
A) Beyond C
B) At C
C) Between F and P
D) At infinity
Answer: Between F and P
49. Convex mirrors are used in vehicles for
A) Wide field of view
B) Magnified image
C) Real image
D) Focus sunlight
Answer: Wide field of view
50. For a spherical mirror, if object distance u → ∞, image distance v →
A) Infinity
B) Zero
C) Focal length
D) Radius of curvature
Answer: Focal length
Also Read: Magnetic Effects of Current – CBSE Class 10