In simple periscope, the two plane mirror inclined an angle of
90 °
45 °
180 °
360 °
Convex mirror is used as
a shaving mirror
a rear view mirror
a reflector
a doctor's head mirror
A real and enlarged image can be obtained by using a:
convex mirror
plane mirror
concave mirror
either convex or plane mirror
If angle of incidence i = 60 °, then r = ?
120°
30°
100°
60°
The image formed by a plane mirror is:
erect and diminished
erect and enlarged
inverted and of same size
erect and of same size
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
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 radius of curvature of a convex mirror is 40 cm. Then the focal length is
80 cm
10 cm
50 cm
20 cm
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
