MCQ
If the critical angle for total internal reflection from a medium to vacuum is $30^{\circ}$, the velocity of light in the medium is
- A$3 \times 10^8 m / s$
- ✓$1.5 \times 10^8 m / s$
- C$6 \times 10^8 m / s$
- D$\sqrt{3} \times 10^8 m / s$
✓
Answer
Correct option: B.
$1.5 \times 10^8 m / s$
$1.5 \times 10^8 m / s$
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