Glass has refractive index m with respect to air and the critical angle for a ray of light going from glass to air is q. If a ray of light is incident from air on the glass with angle of incidence q, the corresponding angle of refraction is [MP PMT 2004]

\[{{\sin }^{-1}}\left( \frac{1}{\mu } \right)\]

\[{{\sin }^{-1}}\left( \frac{1}{\sqrt{\mu }} \right)\]

\[{{\sin }^{-1}}\left( \frac{1}{{{\mu }^{2}}} \right)\]

Glass has refractive index m with respect to air and the critical angl

1.	Glass has refractive index m with respect to air and the critical angle for a ray of light going from glass to air is q. If a ray of light is incident from air on the glass with angle of incidence q, the corresponding angle of refraction is [MP PMT 2004]
A.	\[{{\sin }^{-1}}\left( \frac{1}{\sqrt{\mu }} \right)\]
B.	\[{{90}^{o}}\]
C.	\[{{\sin }^{-1}}\left( \frac{1}{{{\mu }^{2}}} \right)\]
D.	\[{{\sin }^{-1}}\left( \frac{1}{\mu } \right)\]
Answer» D. \[{{\sin }^{-1}}\left( \frac{1}{\mu } \right)\]