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According to Huygens' principle, during ...

According to Huygens' principle, during rafraction of light from air to a denser medium

A

Wavelength decreases but speed increases

B

Wavelength increases but speed decreases

C

Wavelength and speed both increase

D

Wavelength and speed both decrease

Text Solution

Verified by Experts

The correct Answer is:
D
When light ray goes from air to denser medium, then its wavelength and speed decreases because every medium have a different velocity of light.
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