Convex mirror is used as
a shaving mirror
a rear view mirror
a reflector
a doctor's head mirror
When two mirrors are kept parallel to each other, Then the number of images formed is:
Zero
One
Infinite
Two
Which of the following sentence is true for a real image?
A real image can be obtained on a screen
A real image is erect
A real image is formed by a plane mirror
A convex mirror produces a real image
In a convex mirror, the image formed is
Virtual, Inverted and Diminished
Real, Inverted and Diminished
Virtual, Upright and Magnified
Virtual, Upright and Diminished
An insect is sitting in front of a plane mirror at a distance 1m from it. The distance between insect and its image is:
1 m
1.5 m
2 m
3 m
_______ are used in construction of reflecting periscope.
Plane mirrors
Concave mirror
Concave lens
Convex mirror
A man standing in front of a plane mirror, finds his image at a distance 6 m from himself. Then the distance of man from the mirror is:
6 m
12 m
By law of reflection
The radius of curvature of a convex mirror is 40 cm. Then the focal length is
80 cm
10 cm
50 cm
20 cm
An object is placed between two plane mirrors inclined at an angle of 50 °. Then the number of images formed is
5
7
8
10
