A ray of light passes from glass of refractive index 1.6 to air. The angle of incidence for which the angle of refraction is twice the angle of incidence is

\({\sin ^{ - 1}}\left( {5/8} \right)\)

\({\sin ^{ - 1}}\left( {4/5} \right)\)

\({\sin ^{ - 1}}\left( {3/5} \right)\)

\({\sin ^{ - 1}}\left( {2/5} \right)\)

A ray of light passes from glass of refractive index 1.6 to air. The a

1.	A ray of light passes from glass of refractive index 1.6 to air. The angle of incidence for which the angle of refraction is twice the angle of incidence is
A.	\({\sin ^{ - 1}}\left( {4/5} \right)\)
B.	\({\sin ^{ - 1}}\left( {3/5} \right)\)
C.	\({\sin ^{ - 1}}\left( {5/8} \right)\)
D.	\({\sin ^{ - 1}}\left( {2/5} \right)\)
Answer» C. \({\sin ^{ - 1}}\left( {5/8} \right)\)

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A ray of light passes from glass of refractive index 1.6 to air. The angle of incidence for which the angle of refraction is twice the angle of incidence is

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