Two mirrors are set up at an angle of 90.0°. if light is incident on the first mirror at an angle of 34.6° from the normal, at what angle is it incident on the second mirror? ° from the normal of the second mirror

angle of incidence for the second mirror is 55.4 degree  

Explanation:

Given data;

Angle between two mirror is 90 degree

Incident angle on first mirror is 34.6 degree

For first mirror

Angle of incidence  is equal to  angle of reflection

34.6 degree = angle of reflection

Now , for the triangle ABC         [from figure]

The angle of incidence for

angle of incidence for the second mirror is 55.4 degree  

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