Question

When light enters from air to water, then its frequency
A) increases and speed decreases B) is same but the wavelength is smaller in water than in air C) is same but the wavelength in water is greater than in air D) decreases and wavelength is smaller in water than in air

Answer 1

When light enters from air to water, then its frequency is same but the wavelength in water is greater than in air

Answer 2

Answer: B. Frequency is same but wavelength is smaller in water

Explanation:frequency not change when medium is change but speed and wavelength changes with change in medium.

Speed and wavelength decreases when light travels from rare to denser medium.