The wavelength of light, while it is passing through water is 540 nm. The refractive index of water is 4/3. The wavelength of the same light when it is passing through a transparent medium having refractive index of 3/2 is nm.
(3) 480
Frequency does not change on refraction, so medium = 0 = 0 = constant
1 1 = 2 2
2 = 1 1 2 = 43 540 32
2 = 7201.5
2 = 480 nm
Answer: (3)
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