In a biprism experiment, the distacne be...

In a biprism experiment, the distacne between the slit and the eyepiece is 80 cm and theseparation between the two virtual images of the slit is `0.25` mm. If the slit is illuminated by a light of wavelenght `6000Å`A, then distance of second bright band from central bright band will be

`3.84` mm

`1.84` mm

`3.24 mm`

`2.24 mm`

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The correct Answer is:

`x_(2b)=2beta=2(Dlamda)/(d)=(2xx0.8xx6xx10^(-7))/(25xx10^(-5))=3.84mm`

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