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"If an incident ray forms 60° with the mirror, calculate the angle of reflection." A) 90° B) 30° C) 60°

Posted by Drishti Ranjan 5 years, 4 months ago

CBSE > Class 08 > Science

3 answers

Kriti Kotiyal 5 years, 3 months ago

Angle of incident=Angle of reflection so, the correct answer is 60°. I think so.

0Thank You

Drishti Ranjan 5 years, 3 months ago

I think that your answer is wrong. If you read the question carefully, it says that the incident ray forms 60° with the "MIRROR". The angle of incidence is the angle formed between the incident ray and the "NORMAL". Normal=90° with the mirror Angle between incident ray and mirror=60° Angle between incident ray and normal (angle of incidence)= 90-60= 30° As angle of reflection = Angle of incidence Angle of reflection = 30°

1Thank You

Yogita Ingle 5 years, 4 months ago

In optics, the angle of incidence is equal to the angle of reflection. Therefore, the angle of reflection will also be 60°.

0Thank You

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