QAIPM-2014-Ph-1403: NEET 2014 Physics - Class 12 AIPM-2014-Ph-1403 Solution: The angle of a prism is A. One of its refracting surfaces is…

The angle of a prism is A. One of its refracting surfaces is silvered. Light rays falling at an angle of incidence 2A on the first surface returns back through the same path after suffering reflection at the silvered surface. The refractive index $\mu$ of the prism is $2\sin A$ $2\cos A$ $\frac{1}{2}\cos A$ $\tan A$