Fringes are obtained with the help of a biprism in the focal plane of an eyepiece distant 1 m from the slits. A convex lens produces images of the lit in two position between biprism and eyepiece. The distances between two images of the slit in two position are `4.05xx10^(-3)m` and `2.9xx10^(-3)m` respectively. Calculate the distance between the slits.

Fringes are obtained with the help of a biprism in the focal plane of

1.	Fringes are obtained with the help of a biprism in the focal plane of an eyepiece distant 1 m from the slits. A convex lens produces images of the lit in two position between biprism and eyepiece. The distances between two images of the slit in two position are `4.05xx10^(-3)m` and `2.9xx10^(-3)m` respectively. Calculate the distance between the slits.
Answer» `d=sqrt(d_(1)d_(2))=sqrt(4.05xx10^(-3)xx2.9xx10^(-3))=3.43xx10^(-3)m`

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