Question

If the speed of the light in vacuum is 3×10 power of 8 m/s find the speed of the light in a medium of absolute refractive index 1.5.

Answer 1

• Solution

→ n = 1.5

→ C = 3 × 10⁸m/s

• n = C/Vm

→ 1.5 = 3 × 10⁸/Vm

→ Vm = 3 × 10⁸/1.5

→ Vm = 3 × 10⁸ × 10/15

→ Vm = 2 × 10⁸ m/s

Answer 2

Answer:

2x10^8m/s

Explanation:

from def of r.i of medium