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Two slits spaced 0.260mm apart are placed 0.700 m from a screen and illuminated by coherent...

Two slits spaced 0.260mm apart are placed 0.700 m from a screen and illuminated by coherent light with a wavelength of 660 nm. The intensity at the center of the central maximum (θ = 0) is I0. Hint: What is the condition for minima in two slit interference ? (a) What is the distance on the screen from the central maximum to the first minimum ? (b) What is the distance on the screen from the center of the central maximum to the point where the intensity has fallen to I0/2 ?

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