MCQ
For the total internal reflection from any medium to vacuum, critical angle is $30^{\circ}$ then speed of light will be :
- A$3 \times 10^8 m / s$
- ✓$1.5 \times 10^8 m / s$
- C$6 \times 10^8 m / s$
- D$3 \times 10^8 m / s$
✓
Answer
Correct option: B.
$1.5 \times 10^8 m / s$
(B) - $1.5 \times 10^8 m / s$
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