1. Tardigrade
  2. Question
  3. Physics
  4. The critical angle for total internal reflection in diamond is 24.5° . The refractive index of the diamond is

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. The critical angle for total internal reflection in diamond is $ 24.5^{\circ} $ . The refractive index of the diamond is

Delhi UMET/DPMTDelhi UMET/DPMT 2009Ray Optics and Optical Instruments

Solution:

Given, critical angle $C=24.5^{\circ}$
For total internal reflection
$\mu=\frac{1}{\sin C} =\frac{1}{\sin 24.5^{\circ}} \mu$
$=2.45 \left[\sin 24.5^{\circ}=0.414\right]$