Question

In Fresnel's Biprism, the value of wavelength depends upon

Ans :

(1) The distance between two coherent sources
(2) The fringe-width
(3) The distance between slit and eyepiece of telescope
(4) All of the above​

Answer 1

The Formula which determine the Wavelength is λ = βd/D

Where,

λ =  Wavelength 

β = Fringe Width

d = Distance between two Virtual Sources.

D = Distance between the source and the Eyepiece.

From the Formula, we can Predict that, Wavelength of the Monochromatic light Depends upon---

a). β - Fringe Width.

b). Distance between the source and the virtual source.

c). Distance between the source and the eyepiece.

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