The incident ray and reflected ray from a mirror are mutually perpendicular to each other? Find the angle of incidence.
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Answered by
17
i and r are perpendicular
therefore, i+r=90;
i=r;
therefore, i+i=90
2i=90
therefore, i=45
r=i=45
therefore, i+r=90;
i=r;
therefore, i+i=90
2i=90
therefore, i=45
r=i=45
Answered by
1
Answer:
Answer is 45 degress
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