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A beam of monochromatic blue light of wa...

A beam of monochromatic blue light of wavelength `4200 Å` in air travels in water of refractive index 4/3. Its wavelength in water will be:

A

`4200 Å`

B

`5800 Å`

C

`4150 Å`

D

`3150 Å`

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WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2009-Multiple Choice Questions (Physics)
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