Light travels in two media A and B with speeds `1.8 × 10^(8) m s^(–1) and2.4 × 10^(8) m s^(–1)` respectively. Then the critical angle between them isA. `sin^(-1)(2/3)`B. `tan^(-1)(3/4)`C. `tan^(-1)(2/3)`D. `sin^(-1)(3/4)`

Light travels in two media A and B with speeds `1.8 × 10^(8) m s^(–

1.	Light travels in two media A and B with speeds `1.8 × 10^(8) m s^(–1) and2.4 × 10^(8) m s^(–1)` respectively. Then the critical angle between them isA. `sin^(-1)(2/3)`B. `tan^(-1)(3/4)`C. `tan^(-1)(2/3)`D. `sin^(-1)(3/4)`
Answer» Correct Answer - D (d) We have, `C=sin^(-1)(v_(1)/v_(2))=sin^(-1)(3/4)`

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Light travels in two media A and B with speeds `1.8 × 10^(8) m s^(–1) and2.4 × 10^(8) m s^(–1)` respectively. Then the critical angle between them isA. `sin^(-1)(2/3)`B. `tan^(-1)(3/4)`C. `tan^(-1)(2/3)`D. `sin^(-1)(3/4)`

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