λ0 = 500 nm and the refractive index of the glass is n=1.5,
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A Fresnel biprism placed midway between a point source and a screen
is used to obtain fringes from the source placed 2 m from the screen. If the wavelength of light is
λ0 = 500 nm and the refractive index of the glass is n=1.5,
what is the angle of the prism if the separation between fringes is 0.5 mm?
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