Question
Physics Question on Wave optics
According to Huygen's principle, during refraction of light from air to a denser medium
A
Wavelength and speed decrease
B
Wavelength and speed increase
C
Wavelength increases but speed decreases
D
Wavelength decreases but speed increases
Answer
Wavelength and speed decrease
Explanation
Solution
When light ray goes from air to denser medium. then its wavelength and speed decreases because every medium have a different velocity of light