Question

in the given figure AB is a mirror PQ is the incident ray and QR is reflected ray if angle PQR = 120 degree find angle PQA​

Answer 1

Answer:

Hi

Hope it helps you

Answer 2

Hello mate,

Here's your answer:-

PQR=120°

Let PQA=RQB=x (incidence=reflection)

AQB=180° (STRAIGHT LINE)

.°. PQR+PQA+RQB=180°

=>120°+x+x=180°

=>2x=180-120

=>x=60/2=30°

.°.PQA=x=30°

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