Q. 53.7( 3 Votes )
Determine the refractive index of benzene if the critical angels 42°. (AS1)
Critical angle (c) = 42o .
By Snell’s Law;
Refractive index(n) =
⇒ n =
⇒ n = (By looking in sine table sin42 = 0.6691).
Hence refractive index of benzene is 1.51
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