Class 10th Physics Reflection of light MCQs with Answers
1. The angle of reflection is equal to the angle of incidence:
(a) Always
(b) Sometimes
(c) Under special conditions
(d) Never
Correct Answer :- (a)
2. The angle between an incident ray and the plane mirror is 30°. The total angle between the incident ray and reflected ray will be:
(a) 30°
(b) 60°
(c) 90°
(d) 120°
Correct Answer :- (d)
3. A ray of light is incident on a mirror making an angle of 90° with the mirror surface. The angle of reflection for this ray of light will be:
(a) 45°
(b) 90°
(c) 0°
(d) 60°
Correct Answer :- (c)
4. The image of an object formed by a plane mirror is:
(a) Virtual
(b) Real
(c) Diminished
(d) Upside-down
Correct Answer :- (a)
5. The image formed by a plane mirror is:
(a) Virtual, behind the mirror and enlarged.
(b) Virtual, behind the mirror and of the same size as the object
(c) Real, at the surface of the mirror and enlarged.
(d) Real, behind the mirror and of the same size as the object.
Correct Answer :- (b)
6. The figure given alongside shows the image of a clock as seen in a plane mirror. The correct time is:
(a) 2.25
(b) 2.35
(c) 6.45
(d) 9.25
Correct Answer :- (d)
7. An object is placed 20 cm in front of a plane mirror. The mirror is moved 2 cm towards the object. The distance between the positions of the original and final images seen in the mirror is:
(a) 2 cm
(b) 4 cm
(c) 10 cm
(d) 22 cm
Correct Answer :- (b)
8. In a convex spherical mirror, reflection of light takes at:
(a) A flat surface
(b) A bent-in surface
(c) A bulging-out surface
(d) An uneven surface
Correct Answer :- (c)
9. A diverging mirror is:
(a) A plane mirror
(b) A convex mirror
(c) A concave mirror
(d) A shaving mirror
Correct Answer :- (b)
10. If R is the radius of curvature of a spherical mirror and 'F' is its focal length, then:
(a) R = F
(b) R = 2F
(c) R = F/2
(d) R = 3F
Correct Answer :- (b)
11. The focal length of a spherical mirror of radius of curvature 30 cm is:
(a) 10 cm
(b) 15 cm
(c) 20 cm
(d) 30 cm
Correct Answer :- (b)
12. If a magnification of, -1(minus one) is to be obtained by using a converging mirror, then the object has to be placed:
(a) Between pole and focus
(b) At the Centre of curvature
(c) Beyond the Centre of curvature
(d) At infinity
Correct Answer :- (b)
13. The image formed by a concave mirror is virtual, erect and magnified. The position of object is:
(a) At focus
(b) Between focus and Centre of curvature
(c) At pole
(d) Between pole and focus
Correct Answer :- (d)
14. The angle of incidence for a ray of light passing through the Centre of curvature of a concave mirror is:
(a) 45°
(b) 90°
(c) 0°
(d) 180°
Correct Answer :- (c)
15. In the concave reflector of a torch, the bulb is placed:
(a) Between the pole and focus of reflector
(b) At the focus of reflector
(c) Between focus and Centre of curvature of reflector
(d) At the Centre of curvature of reflector
Correct Answer :- (b)
16. An object is 100 mm in front of a concave mirror which produce an upright image (erect image). The radius of curvature of the mirror is:
(a) Less than 100 mm
(b) Between 100 mm and 200 mm
(c) Exactly 200 mm
(d) More than 200 mm
Correct Answer :- (d)
17. One of the following does not apply to a concave mirror. This is:
(a) Focal length is negative
(b) Image distance can be positive or negative
(c) Image distance is always positive
(d) Height of image can be position or negative
Correct Answer :- (c)
18. Magnification produced by a plane mirror is:
(a) More than 1
(c) Zero
(b) Less than 1
(d) Equal to 1
Correct Answer :- (d)
19. In order to obtain a magnification of, -2(minus 2) with a concave mirror, the object should be placed:
(a) Between pole and focus
(b) Between focus and Centre of curvature
(c) At the Centre of curvature
(d) Beyond the Centre of curvature
Correct Answer :- (b)
20. A concave mirror produces a magnification of +4. The object is placed:
(a) At the focus
(b) Between focus and Centre of curvature
(c) Between focus and pole
(d) Beyond the Centre of curvature
Correct Answer :- (c)
21.Linear magnification (m) produced by a rear view mirror fitted in vehicles:
(a) Is equal to one
(b) Is less than one
(c) Is more than one
(d) Can be more or less than one depending on the position of object
Correct Answer :- (b)
22. The image formed by a spherical mirror is virtual. The mirror will be:
(a) Concave
(b) Convex
(c) Either concave or convex
(d) Metallic
Correct Answer :- (c)
23. The mirror used by a dentist to examine the teeth of a person is:
(a) Convex
(b) Concave
(c) Plane
(d) Any one of the above
Correct Answer :- (b)
24. If the image formed is always virtual, the mirror can be:
(a) Concave or convex
(b) Concave or plane
(c) Convex or plane
(d) Only convex
Correct Answer :- (c)
25. A concave mirror cannot be used as:
(a) A magnifying mirror
(b) A torch reflector
(c) A dentist's mirror
(d) A rear view mirror
Correct Answer :- (d)
