Question

Light of a wavelength 532 nm falls on a slit that is 2.50*10^-3 mm wide. How wide is the central maxima if the screen is 20 cm away.

Answer 1

Given that:

Wavelength of the light, λ = 532 nm = 532 x 10^-9 m

Width of the slit, x = 2.5 x 10^-3 mm = 2.5 x 10^-6 m

Distance to the screen, L = 20 cm = 0.20 m

Hence, Width of the central maxima (W) is given by:

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