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If critical angle of glass-air pair ( ) is and that of water-air pair ( ) is , then the critical…
Assertion: If critical angle of glass-air pair ($\mu_g = 3/2$) is $\theta_1$ and that of water-air pair ($\mu_w = 4/3$) is $\theta_2$, then the critical angle for the water-glass pair will lie between $\theta_1$ and $\theta_2$.
Reason: A medium is optically denser if its refractive index is greater.
- (a)Both Assertion and Reason are true and Reason is the correct explanation for Assertion.
- (b)Both Assertion and Reason are true but Reason is not the correct explanation for Assertion.
- (c)Assertion is false and Reason is true.
- (d)Both Assertion and Reason are false.
Answer
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From ISC 2025 Specimen Physics Paper 1, question 1(A)(vii).