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The wavelength of green colour in air an...

The wavelength of green colour in air and violet colour in water are 5381 `overset (@)(A)` and 3042 `overset (@)(A)` respectively . If the wavelength of green colour in water is the same as the wavelength of violet colour in air , find its value . (Assume that refrective index for green and violet colour is approximately same)

A

`4046 overset (@)(A)`

B

`3046 overset (@)(A)`

C

`3000 overset (@)(A)`

D

`2000 overset (@)(A)`

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