A ray of light is incident on denser medium making an angle of `40^(@)` with the surface. After refraction, it is deviation by `12^(@)` from its initi
A ray of light is incident on denser medium making an angle of `40^(@)` with the surface. After refraction, it is deviation by `12^(@)` from its initial path. The refractive index of denser medium will be
A. `1.6`
B. `1.4`
C. `1.244`
D. `2.4`
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Correct Answer - C
`delta = i-r :. r = i - delta = 50 - 12 = 38^(@)`
`mu = (sin i)/(sin r) = (sin 50)/(sin 38) = (0.7660)/(0.6157) = 1.244`
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