Question:medium

The critical angle for glass-water interface (if \( \mu_g = \frac{3}{2}, \mu_w = \frac{4}{3} \)) is:

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Critical angle uses \(\frac{\text{rarer}}{\text{denser}}\) and must always be \(< 1\).
Updated On: Apr 16, 2026
  • \( \sin^{-1}\left(\frac{8}{9}\right) \)
  • \( \sin^{-1}\left(\frac{9}{8}\right) \)
  • \( \sin^{-1}\left(\frac{3}{2}\right) \)
  • None of these
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The Correct Option is A

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