When light enters from air into glass which of these doesn't change--

a) Wavelength

b) Velocity

c) Frequency

d) All

Please answer with reason

Question

When light enters from air into glass which of these doesn't
change--
a) Wavelength
b) Velocity
c) Frequency
d) All
Please answer with reason

Akhila Sadanandan · Answer

c) Frequency
The frequency of a ray of light is independent of the medium in
which it travels