Question

The refractive index of diamond is 2.4. The speed of light in diamond is:
(Given : Speed of light in air = 3 x 10${}^8$ ms${}^{-1}$)

• A. 2.5 x 10${}^8$ ms${}^{-1}$
• B. 1.25 x 10${}^8$ ms${}^{-1}$
• C. 3 x 10${}^8$ ms${}^{-1}$
• D. 3 x 10${}^8$ ms${}^{-1}$

Answer 1

The correct option is B 1.25 x 10${}^8$ ms${}^{-1}$