Question

The refractive index of glass with respect to water is 9/8. If the velocity and wave length of light in glass are 2 x 10⁸ m/s and 4000 A° respectively. Then the velocity and wavelength of light in water are
a) 2.25 x 10⁸ m/s,4500A°
b) 2.25x10⁸ m/s, 5000 A°
c) 3x10⁸m/s, 4500A°
d) 3x10⁸m/s, 5000A°

Can you please explain cleary with process I'll mark brainliest member​

Answer 1

Answer:

Light is refracted when it crosses the interface from air into glass in which it moves more slowly. Since the light speed changes at the interface, the wavelength of the light must change, too. The wavelength decreases as the light enters the medium and the light wave changes direction.