1.

What will be the effect on the width of the central bright fringe in the diffraction pattern of a single slift if:(1) Monochromatic light of smaller wavelength is used.(2) Slit is made narrower.

Answer»

Width of the central maxima  \((2\frac{\lambda}{a}D)\)clearly :

• decreases when the wavelength is decreased. • increases when the slit width V decreases.



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