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Frequency and wavelength change when light passes from a rarer to a denser medium.

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in Physics – Class 12 by (135k points)
Frequency and wavelength change when light passes from a rarer to a denser medium.

(a) True

(b) False

I had been asked this question in final exam.

My query is from Reflection of Light by Spherical Mirrors topic in chapter Ray Optics and Optical Instruments of Physics – Class 12

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Correct choice is (b) False

To explain I would say: When light passes from a rarer to a denser medium, the wavelength of light changes but the frequency remains unchanged. Therefore, both frequency and wavelength do not change when light passes from a rarer to a denser medium.

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