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The wavelength of light coming from a so...

The wavelength of light coming from a sodium source is 589 nm. What will be its wavelength in water? Refractive index of water 1.33.`

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The wavelength in water is `lamda=lamda_0/mu where lamda_0` is the wavelength in vacuum and `mu` is th refractive index of water. Thus,
`lamda=589/1.33=4443nm.`
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HC VERMA-LIGHT WAVES-Exercises
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  16. In a Young's double slit experiment using monochromatic light, the fri...

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  18. A Young's double slit experiment is performed with white light.

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  20. A Young's double slit apparatus has slits separated by 0.28 mm and a s...

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