Question

A monochromatic light ray travelling in vacuum with its wavelength lambda and frequency v enters a medium of refractive index 1.9 what will be its new speed wavelength and frequency when lambda is equal to 500 m storm

Answer 1

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$\huge\mathfrak{Answer:}$

The frequency is independent of refraction, so it has no effect on changing refractive index while travelling from vacuum to other mediums. ... When light travels from vacuum to other medium, it gets into a denser medium from a rarer one, which decreases it's velocity and hence wavelength.

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