When a beam of light (wavelength = 450 nm),originally travelling in air, enters a piece of glass (index of refraction 1/50), what will happen to its frequency?

It gets increased by a factor of 3

It gets reduced to 1/3 of its original value

It increases by a factor of 1.50

When a beam of light (wavelength = 450 nm),originally travelling in ai

1.	When a beam of light (wavelength = 450 nm),originally travelling in air, enters a piece of glass (index of refraction 1/50), what will happen to its frequency?
A.	It gets reduced to 1/3 of its original value
B.	It increases by a factor of 1.50
C.	It gets unaffected
D.	It gets increased by a factor of 3
Answer» D. It gets increased by a factor of 3