What is the speed of light in Quartz having a refractive index of 1.54 if its speed in air is $3 \times 10^{8} m s^{- 1}$

Open in App

Solution

We know that refractive index $n = \frac{v e l o c i t y o f l i g h t i n a i r}{v e l o c i t y o f l i g h t i n m e d i u m} = \frac{c}{v}$
Here $c = 3 \times 10^{8} m / s$
$n = 1.54$
$1.54 = \frac{3 \times 10^{8}}{v}$
$v = 1.95 \times 10^{8} m / s$

Suggest Corrections

Similar questions

The speed of light in diamond is 125,000 km $m s^{- 1}$ . What is its refractive index? (Speed of light in air = 3 $\times 10^{8} m s^{- 1}$ )

The speed of light in air is 3 $\times 10^{8} m s^{- 1}$ . Calculate the speed of light in glass. The refractive index of glass is 1.5.

3 \times 10^{8} m / s

2.4

Light enters from air to glass having refractive index 1.50. What is the speed of light in the glass? The speed of light in vacuum is 3 × 10⁸ m s⁻¹.

3 \times 10^{8} m s^{- 1}

Join BYJU'S Learning Program