Two plane mirror MN and PQ inclined at an angle $θ$ as shown in figure. O is a point source 10 cm above the mirror MN. For light rays striking on the mirror MN directly from O not to strike the mirror PQ, the maximum value of $θ$ is :-

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tan θ = 10/ 3 ​ 10 ​ ; θ = 6 0 ∘ If θ < 6 0 ∘ , the ray will not strike the PQ.

Physics - Geometrical Optics Question with Solution | TestHub

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JEE Main - 1 year (12th class)