Ray Optics and Optical Instruments

Question: If the critical angle for total internal reflection from a medium to vacuum is 30°, the velocity of light in the medium is

1) $3\times {{10}^{8}}$ m/s

2) $1.5\times {{10}^{8}}$ m/s

3) $6\times {{10}^{8}}$ m/s

4) $\sqrt{3}\times {{10}^{8}}$m/s

Solution:

Explanation: No Explanation

Total Internal Reflection

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