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(B) The angular width of the central maximum in a single-slit diffraction pattern is given by the formula $	heta = \frac{2\lambda}{d}$,where $\lambda

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decreases with an increase in slit width

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(B) The angular width of the central maximum in a single-slit diffraction pattern is given by the formula $	heta = \frac{2\lambda}{d}$,where $\lambda$ is the wavelength of the light and $d$ is the width of the slit.From this relation,it is clear that the angular width $	heta$ is inversely proportional to the slit width $d$ (i.e.,$	heta \propto \frac{1}{d}$).Therefore,as the slit width $d$ increases,the angular width of the central maximum decreases.

$A$ parallel beam of monochromatic light falls normally on a single narrow slit. The angular width of the central maximum in the resulting diffraction pattern

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