The angular spread of the central maximum in | vedclass

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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}{a}$,where $\lambda

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the distance between the slit and the source

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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}{a}$,where $\lambda$ is the wavelength of light and $a$ is the width of the slit.Since the frequency $f$ is related to wavelength by $\lambda = \frac{c}{f}$,the angular width also depends on the frequency.The formula shows that the angular spread depends on the wavelength (and thus frequency) and the slit width.It does not depend on the distance between the slit and the source or the distance between the slit and the screen.Therefore,the correct option is $B$.

The angular spread of the central maximum in a diffraction pattern does not depend on . . . . . . .

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