Find the angle of incidence for a reflected ray at following angles . 30 degree ,60 degree

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Solution

Dear student,
By the law of reflection angle of incidence is always equal to the angle of reflection. So when reflected Ray is 30 degree to the normal then the angle of incidence will be 30 degrees also. So in all options, the angle of incidence will be equal to the angle of reflection given.
Regards

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