Question

Absolute refractive indices of glass and water are `3/2 and 4/3` respectively. If the speed of light in glass is 2 × 10⁸ m/s, the speed of light in water is ______.

Options

• `9/4xx10^8` m/s

• `5/2xx10^8` m/s

• `7/3xx10^8` m/s

• `16/9xx10^8` m/s

Answer 1

Absolute refractive indices of glass and water are `3/2 and 4/3` respectively. If the speed of light in glass is 2 × 10⁸ m/s, the speed of light in water is `bbunderline(9/4xx10^8 "m/s")`