Home
Class 12
PHYSICS
A plane mirror, reflecting a ray of inci...

A plane mirror, reflecting a ray of incident light, is rotated through an angle `theta` about an axis through the point of incidence in the plane of the mirror perpendicular to the plane of incidence, then

A

The reflected ray does not rotate

B

The reflected ray rotates through an angle `theta`

C

The reflected ray rotates through an angle `2 theta`

D

The incident ray is fixed

Text Solution

Verified by Experts

The correct Answer is:
C

If plane mirror rotates, through an angle `theta` , reflected ray rotates through an angle 2`theta` , by keeping the incident ray is fixed.
Promotional Banner

Similar Questions

Explore conceptually related problems

A plane mirror reflecting a ray of incident light is rotated through an angle q about an axis through the point of incidence in the plane of the mirror perpendicular to the plane of incidence, then (1) The reflected ray rotates through an angle 2q (2) The incident ray is fixed (3) The reflected ray does not rotate (4) The reflected ray rotates through an angle q

A plane mirror reflecting a ray of incident light is rotated through an angle of 30^@ about an axis through the point of incidence in the plane of the mirror and perpendicular to the plane of incidence then

For a fixed incident light ray, if the mirror be rotated through and angle theta (about an axis which lies in the plane of mirror and perpendicular to the plane of incidence), show that the reflected ray turns through an angle 2 theta in same sense.

I is a ray incident on a plane mirror. Keeping the incident ray fixed, the mirror is rotated by an angle theta about an axis passing through A perpendicular to the plane of the Fig. show that the refracted ray rotates through an angle 2theta . Does your answer differ if the mirror is rotated about an axis passing through B?

When a plane mirror is rotated through an angle theta then the reflected ray turns through the angle 2 theta then the size of the image

Show that a ray of light reflected from a plane mirror rotates througha an angle 2theta when the mirror is rotated through an angle theta about its axis perpendicular to both the incident ray and the normal to the surface.

A ray of light is incident on a plane mirror, making an angle 'q' with the surface of the mirror. Arrange the following steps in sequential order to calculate the angle between the incident light ray and the reflected light ray. (A) Draw a normal line on the plane mirror at the point of incidence of the light ray. (B) Note down the angle between the plane mirror and the incident light ray. (C) The sum of the angle of incidence and the angle between the plane mirror and the incident ray is 90^(@) .Determine the angle of incidence. (D) From the laws of reflection, the angle of incidence is equal to the angle of reflection. Then the sum of the angle of incidence and the angle of reflection gives the angle between the incident light ray and the reflected light ray.