By law of reflection
Convex mirror is used as
a shaving mirror
a rear view mirror
a reflector
a doctor's head mirror
The radius of curvature of a convex mirror is 40 cm. Then the focal length is
80 cm
10 cm
50 cm
20 cm
A real and enlarged image can be obtained by using a:
convex mirror
plane mirror
concave mirror
either convex or plane mirror
For a spherical mirror:
f = R
f = 2R
The image formed by a plane mirror is:
erect and diminished
erect and enlarged
inverted and of same size
erect and of same size
In simple periscope, the two plane mirror inclined an angle of
90 °
45 °
180 °
360 °
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?
75 cm
12.5 cm
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
