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In Fraunhoffer diffraction, the wavelength incident light perpendicular to slit made double. the distance from the slit to the screen made tripled and if the width of the slit made (3)/(2) times then width of central maximum will be..... |
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Answer» THREE times Width of central maximum `alpha=(2lambdaD)/(d)` `:.` The new width obtained from modifying I and d, `alpha.=((2lambda)(3D))/(((3)/(3)))` `:.(alpha.)/(alpha)=4` `:.` Four times |
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