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Question: The wavelength of light in two liquids '*x*' and '*y*' is 3500 Å and 7000 Å, then the critical angle...

The wavelength of light in two liquids 'x' and 'y' is 3500 Å and 7000 Å, then the critical angle of x relative to y will be

A

600

B

450

C

300

D

150

Answer

300

Explanation

Solution

sinC=μ2μ1=λ1λ2=35007000=12C=30\sin C = \frac { \mu _ { 2 } } { \mu _ { 1 } } = \frac { \lambda _ { 1 } } { \lambda _ { 2 } } = \frac { 3500 } { 7000 } = \frac { 1 } { 2 } \Rightarrow C = 30 ^ { \circ }