When two mirrors are kept parallel to each other, Then the number of images formed is:
Zero
One
Infinite
Two
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
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:
3 m
6 m
12 m
2 m
In a convex mirror, the image formed is
Virtual, Inverted and Diminished
Real, Inverted and Diminished
Virtual, Upright and Magnified
Virtual, Upright and Diminished
If angle of incidence i = 60 °, then r = ?
120°
30°
100°
60°
Regular reflection occurs when a beam of light falls on a
plane mirror
book
room
table
For what position of object, the image formed by a concave mirror is magnified and erect?
Object is at centre of curvature
Object is at focus
Object is in between principle focus and the pole
Object is at pole
_______ are used in construction of reflecting periscope.
Plane mirrors
Concave mirror
Concave lens
Convex mirror
At what distance from a concave mirror of focal length 25 cm should an object be placed so that the size of image is equal to the size of the object?
50 cm
75 cm
12.5 cm
20 cm
The return of light into the same medium after striking a surface is called
Refraction
Reflection
Transmission
Radiation
