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  • When one light ray is reflected from a plane mirror with  angle of reflection, the angle o

When one light ray is reflected from a plane mirror with 30^{\circ} angle of reflection, the angle of deviation of the ray after reflection is:

Option: 1

140^{\circ}


Option: 2

130^{\circ}


Option: 3

120^{\circ}


Option: 4

110^{\circ}


Answers (1)

best_answer


\delta=\Pi-2 \mathrm{i}=\Pi-2 \times 30
=180-60=120^{\circ}

Posted by

manish

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