Q9 of 112 Page 310

An incident ray makes an angle of 75° with the surface of a plane mirror. What will be the angle of reflection?

The angle made by the normal will be 90-75= 15. Angle made by normal is equal to angle of incidence. So i=15 degree. And by the law of reflection which states that angle of incidence is equal to the angle of reflection, the angle of reflection will be 15 degree.


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