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OpenStudy (anonymous):
Two plane mirrors are inclined at an angle (theta).if a light ray comes parallel to one mirror and strikes another thus finally emerges parallel to the mirror it striked first. Find theta?
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OpenStudy (anonymous):
45degres
OpenStudy (anonymous):
No its not
OpenStudy (anonymous):
|dw:1445617697777:dw| you can see that \[180 - 2\theta = \theta\] so \[\theta = 60\deg\]
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