(3) In biprism experiment, the eye piece is placed at
a distance of 1.2 metre from the sources. The
distance between the virtual sources was found
to be 7.5 x 10-4 m. Find the wavelength of light
if the eye-piece is to be moved transversely
through a distance of 1.888 cm for 20 fringes.
1-19)
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dont know sorryyyyyyyyyyyyyyyyyyyyyyy
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