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Light of wavelength 520 nm passing throu...


Light of wavelength 520 nm passing through a double slit, produces interference pattern of relative intensity versus deflection angle `theta` as shown in the figure. Find the separation d between the slits.

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For first dark
`theta = (lambda)/(2d) implies 0.75xx (pi)/(180)= (520xx 10^(-9))/(2d)`
`d= 1.98xx 10^(-2) approx 2xx10^(-2) mm`.
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