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12. The following diagram (Fig 4.21) shows anincident ray AO and the normal ON on a planemirror. Find the angle of incidence and angle ofreflection.30°Fig. 4.21 |
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Answer» angle of incidence,i=90°-30°=60°r=ir=60° i+ n = 90i=90-30i=60i=rr=60 |
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