Question

If minimum deviation is 30°, then speed of light in shown prism will be

• A. $\frac {3}{\sqrt 2} \times 10^8\ m/s$
• B. $\frac {1}{\sqrt 2} \times 10^8\ m/s$
• C. $\frac {2}{\sqrt 2} \times 10^8\ m/s$
• D. $\frac {2}{3} \times 10^8\ m/s$

Answer 1

Answer: (A)

$\frac {3}{\sqrt 2} \times 10^8\ m/s$

Answer 2

The correct option is (A): $\frac {3}{\sqrt 2} \times 10^8\ m/s$.