Rankers Physics

Refraction by Plane Surfaces: Practice Problem & Solution

When a light ray enters refracting medium, it is found that the magnitude of the angle of refraction is equal to half the angle of reflection. If n is the refractive index of the medium, then the angle of incidence is :
\[2sin^{-1}(n/2)\]
\[2cos^{-1}(n/2)\]
\[cos^{-1}(n/2)\]
\[sin^{-1}(n/2)\]

No solution provided for this question.

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