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In a biprism experiment, the slit is ill...

In a biprism experiment, the slit is illuminated by a light of wavelength 5000Å . The distane between the slit and wyepieceis 1,. If the distance between the two virtual soruces is `0.25` cm, then distance between fifth band on one side and the sixth dark band on the other side of the central bright band will be

A

`1.1` mm

B

`2.2 mm`

C

`2.1 mm`

D

`3.1` mm

Text Solution

Verified by Experts

The correct Answer is:
C
`x=5beta+5.5beta`
`=10.5beta`
`=10.5(Dlamda)/(d)=(10.5xx1xx5xx10^(-7))/(25xx10^(-4))=2.1`
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