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When a ray of light enters a glass slab ...

When a ray of light enters a glass slab from air

A

Wavelength increases

B

Wavelength decreases

C

Frequency increases

D

Frequency decreases

Text Solution

Verified by Experts

The correct Answer is:
B

When a light ray enters from air to glass its frequency remains unchanged, velocity (in denser medium) decreases, so wavelength `lamda=(upsilon)/(n)` decreases.
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