Convex mirror is used as
a shaving mirror
a rear view mirror
a reflector
a doctor's head mirror
In a convex mirror, the image formed is
Virtual, Inverted and Diminished
Real, Inverted and Diminished
Virtual, Upright and Magnified
Virtual, Upright and Diminished
The point at which the incident ray strikes the reflecting surface is:
Angle of incidence
Angle of reflection
Point of incidence
Normal
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
In simple periscope, the two plane mirror inclined an angle of
90 °
45 °
180 °
360 °
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
The radius of curvature of a convex mirror is 40 cm. Then the focal length is
80 cm
10 cm
When two mirrors are kept parallel to each other, Then the number of images formed is:
Zero
One
Infinite
Two
By law of reflection