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(D) When a light ray undergoes successive reflections from two plane mirrors inclined at an angle $	heta$,the total deviation $\delta$ produced is gi

Vedclass · Accepted Answer

$240$

Vedclass · Answer

(D) When a light ray undergoes successive reflections from two plane mirrors inclined at an angle $	heta$,the total deviation $\delta$ produced is given by the formula: $\delta = 360^\circ - 2	heta$.Given that the angle between the mirrors is $	heta = 60^\circ$.Substituting the value of $	heta$ into the formula:$\delta = 360^\circ - 2 	imes 60^\circ$$\delta = 360^\circ - 120^\circ$$\delta = 240^\circ$.Thus,the total deviation is $240^\circ$.

Two plane mirrors are placed at an angle of $60^\circ$. $A$ horizontal light ray is reflected by the first mirror and then by the second mirror. The total deviation will be ........... $^\circ$.

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