Question

When a beam of light enters one medium from another, which quantity will not change?

Answer 1

frequency of the ray bcz due to medium

velocity ,weveleghth are change but frequency doesn't change

Answer 2

Answer:Frequency

Explanation:

The property of light that does not change when it travels from one medium to another is frequency, The energy of the light is related to the frequency; when the light enters the medium there are interference patterns that cause the apperent speed of light to change; if the frequency changed, the energy would not be conserved .Other properties of light like wavelength, speed of light changes when light travels from one medium to another.

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