Question:medium

A ray of light is incident at the glass-water interface at an angle \( i \), it emerges finally parallel to the surface of water, then the value of \( \mu_g \) would be: 

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At the critical angle, the refracted angle is \( 90^\circ \), and Snell’s law gives the refractive index.
Updated On: Mar 25, 2026
  • \( \frac{4}{3} \sin i \)
  • \( \frac{1}{\sin i} \)
  • \( \frac{4}{3} \)
  • 1
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The Correct Option is B

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