The refractive index of liquid is 1.5. If the velocity of light in vacuum is 3.0 x 10⁸ms^-1, the velocity of light in the liquid is

1.5 x 10⁸m^-1

2.0 x 10⁸m^-1

3.0 x 10⁸m^-1

4.5 x 10⁸m^-1

9.0 x 10⁸m^-1

Correct answer is B

n = \(\frac{\text{speed in air}}{\text{speed in glass}}\)

1.5 = \(\frac{3\times10^4}{\text{speed in glass}}\)

speed in glass = 2 x 10⁸ms^-1

See all Physics questions & answers

See more JAMB questions & answers

The refractive index of liquid is 1.5. If the velocity of light in vacuum is 3.0 x 108ms-1, the velocity of light in the liquid is