When monochromatic light travel from a rare to denser medium explain the following is frequency of reflected and refracted light same as incident light does decrease in speed imply a reduction in energy carried by light wave
(i) When light travels from a rarer to denser medium, its frequency remains unchanged. It is because, frequency is an inherent property of light.
(ii) Energy of light E = hν
Where, h = Plank's constant
ν = frequency of light
As the speed decreases wavelength also decreases so the frequency remains same.