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 betw
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
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Correct Answer - C
`x=5beta+5.5beta`
`=10.5beta`
`=10.5(Dlamda)/(d)=(10.5xx1xx5xx10^(-7))/(25xx10^(-4))=2.1`
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