When light is refracted from air into glass - Vidyadip

MCQ

When light is refracted from air into glass

A
Its wavelength and frequency both increase
B
Its wavelength increases but frequency remains unchanged
✓
Its wavelength decreases but frequency remains unchanged
D
Its wavelength and frequency both decrease

✓

Answer

Correct option: C.

Its wavelength decreases but frequency remains unchanged

c
When light is refracted from air into a glass its wavelength decrease but frequency remain unchanged.

$\mu \propto \frac{1}{\lambda} \text {. As } \lambda_{ b } < \lambda_{ g }$

$\text { but } \Rightarrow f _{ b }= f _{ g }$

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