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A ray of light that strikes …

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A ray of light that strikes a plane mirror PQ at an angle of incidence 30°,is reflected from the plane mirror QR placed at right angles to the first mirror.The angle of reflection at the second mirror is:

Posted by Rajebhosale D.M. 5 years, 4 months ago

CBSE > Class 10 > Science

2 answers

Rajebhosale D.M. 5 years, 4 months ago

Ok... thanks

0Thank You

Gaurav Seth 5 years, 4 months ago

Ray AB strikes the mirror PQ at B and gets reflected along BC according to the laws of reflection. The ray BC incident on mirror QR makes an angle of 30^o with the mirror. So, the angle of incidence on this mirror is 90^o- 30^o= 60^o. Hence, the angle of reflection is also 60^o.

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