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BITSAT 2012
Exam
BITSAT
Year
2012
Subject
Physics
Chapter
Ray Optics

BITSAT 2012 · Physics · Ray Optics

A ray of light is incident at the glass-water interface at an angle...

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 μg\mu_{\mathrm{g}} would be A ray of light is incident at the glass-water interface at an angle i, it emerges finally parallel to the surface of

Options

  1. A(4/3)sin⁡i(4 / 3) \sin i
  2. B1/sin⁡i1 / \sin i
  3. C4/34 / 3
  4. D1

Correct answer

B. 1/sin⁡i1 / \sin i

Step-by-step solution

μgsin⁡i=μair sin⁡90∘⇒μg=1sin⁡i\mu_{g} \sin i=\mu_{\text{air }} \sin 90^{{}^{\circ}} \Rightarrow \mu_{g}=\frac{1}{\sin i}
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