The refractive index of diamond is 2-4- If the velocity of light in air or vacuum is 3- 108 m s-1- then the velocity of light in diamond is - - 108 m s-1-

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Refractive Index

The refractiv...

Question

The refractive index of diamond is 2.4. If the velocity of light in air or vacuum is $3 \times 10^{8} m s^{- 1}$ , then the velocity of light in diamond is ......... $\times 10^{8} m s^{- 1}$ .

12.5

No worries! We‘ve got your back. Try BYJU‘S free classes today!

1.25

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

0.8

No worries! We‘ve got your back. Try BYJU‘S free classes today!

125

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B 1.25
By definition value of refractive index = speed of light in air / speed of light in the medium
So, $2.4 = 3 \times$ $10^{8}$ / speed of light in the medium
Or, Speed of light in the medium = $3 \times$ $10^{8}$ $/ 2.4$ = $1.25 \times$ $10^{8}$

Suggest Corrections

Similar questions

The velocity of light in diamond is 1,21,000 km s^-1. The refractive index of the diamond is (Velocity of Light in air = 3 x 10⁸ m s^-1).

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

Q. The speed of light in air is

3 \times 10^{8} m / s

. What will be its speed in diamond whose refractive index is

2.4

Q. The refracting index of diamond is 2.42 and the speed of light in air is

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

. Calculate the speed of light in diamond.

Light enters from air into diamond which has a refractive index of 2.42. Calculate the speed of light in diamond. The speed of light in air is 3.0 x $10^{8} m s^{- 1}$ .

Join BYJU'S Learning Program

The refractive index of diamond is 2.4. If the velocity of light in air or vacuum is 3×108ms−1, then the velocity of light in diamond is .........×108ms−1.

The correct option is B 1.25By definition value of refractive index = speed of light in air / speed of light in the mediumSo,2.4=3× 108 / speed of light in the mediumOr, Speed of light in the medium = 3×108/2.4 = 1.25× 108

The refractive index of diamond is 2.4. If the velocity of light in air or vacuum is $3 \times 10^{8} m s^{- 1}$ , then the velocity of light in diamond is ......... $\times 10^{8} m s^{- 1}$ .

The correct option is B 1.25
By definition value of refractive index = speed of light in air / speed of light in the medium
So, $2.4 = 3 \times$ $10^{8}$ / speed of light in the medium
Or, Speed of light in the medium = $3 \times$ $10^{8}$ $/ 2.4$ = $1.25 \times$ $10^{8}$