A ray from a fixed object is incident on a plane mirror at an angle of 20^o. If the mirror is rotated through 30^o by how many degree would the reflected ray rotate?

Iamlearning

2 years ago

Angle of rotation= x(representing tita)
x= 30°
Degree of rotation of reflected ray = 2x
= 2×30°
=60°

aasiyasidd

4 years ago

explanation please

Racheal164

3 years ago

pls kindly explain

feranmiadam

3 years ago

explain urs then

feranmiadam

3 years ago

the reflected ray rotates by 60 degrees. This can be determined by applying the principle of the angle of incidence and the angle of reflection being equal. Since the angle of incidence is 20 degrees and the mirror rotates by 30 degreesdegrees the angle of reflection also rotate by 30 degrees. Therefore in total reflection of the reflected ray is 20 degrees + 30 degrees = 60 degrees