Monochromatic light of wavelength 589 nm is incident from air on a water surface. What are the wavelength, frequency and speed ofrefracted light? Refractive index of water is 1.33.

Monochromatic light of wavelength 589 nm is incident from air on a wat

1.	Monochromatic light of wavelength 589 nm is incident from air on a water surface. What are the wavelength, frequency and speed ofrefracted light? Refractive index of water is 1.33.
Answer» Solution :a. `lamda=589xx10^(-2)m,C=3XX10^(8)m//s` (air) `:.` Frequency `v=c/(lamda)=(3xx10^(8))/(589xx10^(-9))=5.09xx10^(14)Hz` No change for `lamda` and c b. Frequency remains the same WAVELENGTH `lamda.=(lamda)/n=(589nm)/1.33=443nm` Speed `v.=c/n=(3xx10^(8))/1.33=2.26xx10^(8)m//s`

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Monochromatic light of wavelength 589 nm is incident from air on a water surface. What are the wavelength, frequency and speed ofrefracted light? Refractive index of water is 1.33.

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