Question

CHOOSE THE BEST OPTION:
1. An erect, diminished image of an object is obtained using a _______ mirror.
a) Concave b) convex c) plane d) any of these
2. Which mirror is to be used to obtain a parallel beam of light from a point
source?
a) plane mirror b) concave mirror c) convex mirror d) both (a) and (b)
3. The rear view mirror of a vehicle is_________.
a) Concave b) convex c) plane d) Plano convex
4. Focal length of a plane mirror is _________.
a) Zero b) infinity c) unity d) none of these
5. Angle of incidence in a plane mirror is 30°, what is the angle between
reflected ray and the mirror?
a) 30° b)60° c)45° d)90°
6. A virtual image larger than the object can be produced by____________.
a) Convex mirror b) concave mirror c) plane mirror d) both (a) and (b)
7. The number of images observable between two parallel mirrors is _______.
a) 2 b) 4 c) 6 d) infinity
8. _________________ mirror is also called converging mirror.
a) Plane b) concave c) convex d) any of these
9. A concave mirror is used as shaving or a make-up mirror because.
a) It makes us feel beautiful b) it gives us enlarged image
c) It gives erect image d) it needs to be held closer to our face
10. Which of these is incorrect in a plane mirror?
a) Image is laterally inverted b) image is vertically inverted
c) Object distance=image distance d) object size=image size

Answer 1

Answer:

1, convex

2,concave mirror.

3,convex

4, one.

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