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The biprism experiment was perfomred by ...

The biprism experiment was perfomred by using red light of wavleength 7500 Å and blue light of wavelength 5000Å. The value of n for which (n+1)th blue bright band coincides with `n^(th)` red band is

A

5

B

4

C

3

D

2

Text Solution

Verified by Experts

The correct Answer is:
D
`n_(1)lamda_(2)=n_(2)lamda_(2)" "therefore nxx7500=(n+1)5000`
`therefore 3n=2(n+1)" "thereforen=2`
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MARVEL PUBLICATION-INTERFERENCE AND DIFFRACTION-TEST YOUR GRASP
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