Light of a wavelength 610nm is incident on a slit of
0.20mmwide and the diffraction pattern is produced on a screen that
is1.5m from the slit. what is the width of the
centralmaximum?

0.00915 m

Explanation:

= Wavelength of light = 610 nm

L = Distance of slit to screen = 1.5 m

a = Slit gap = 0.2 mm

Width of central maximum is given by

The width of the central maximum is 0.00915 m

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