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 point at which the incident ray strikes the reflecting surface is:
Angle of incidence
Angle of reflection
Point of incidence
Normal
The incident ray and the reflected ray from a mirror are mutually perpendicular to each other. Then the angle of incidence.
90 °
100 °
80 °
45 °
In a convex mirror, the image formed is
Virtual, Inverted and Diminished
Real, Inverted and Diminished
Virtual, Upright and Magnified
Virtual, Upright and Diminished
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
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
When a concave mirror is used as a shaving mirror, then the person's face is:
in the center of curvature
between the pole and the focus of mirror
behind the mirror
between center of curvature and focus
The radius of curvature of a convex mirror is 40 cm. Then the focal length is
80 cm
10 cm
If angle of incidence i = 60 °, then r = ?
120°
30°
100°
60°
When two mirrors are kept parallel to each other, Then the number of images formed is:
Zero
One
Infinite
Two
