The velocities of light in two different media are 2 xx 10^8 m/s and 2.5 xx 10^8 m/s respectively. The critical angle for these media is

The velocities of light in two different media are 2 xx 10^8 m/s and 2

1.	The velocities of light in two different media are 2 xx 10^8 m/s and 2.5 xx 10^8 m/s respectively. The critical angle for these media is
Answer» `SIN^(-1) (1/5)` `sin^(-1) (4/5)` `sin^(-1) (1/2)` `sin^(-1) (1/4)` ANSWER :B

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The velocities of light in two different media are 2 xx 10^8 m/s and 2.5 xx 10^8 m/s respectively. The critical angle for these media is

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