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What happens to the frequency and the wavelength when light passes from a rarer to a denser medium?

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in Physics – Class 12 by (135k points)
What happens to the frequency and the wavelength when light passes from a rarer to a denser medium?

(a) Wavelength remains unchanged but frequency changes

(b) They are independent

(c) Wavelength and frequency changes

(d) Wavelength changes but the frequency remain unchanged

This question was addressed to me by my college director while I was bunking the class.

My doubt is from Ray Optics topic in portion Ray Optics and Optical Instruments of Physics – Class 12

1 Answer

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Best answer
Correct answer is (d) Wavelength changes but the frequency remain unchanged

Best explanation: When light passes from a rarer to a denser medium, the wavelength of light changes but the frequency remains unchanged. Therefore, there is no change in the frequency of light, only the wavelength changes.

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