Question 349: Wave Optics

Question

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

Accepted Answer

The angular width of the central maximum is
$$2 	heta=\frac{2 \lambda}{\mathrm{a}}$$ where $$\mathrm{a}$$ is the slit width.
$$	herefore$$ If $$\mathrm{a}$$ is increased, the angular width is decreased.

Answer

decreases with increase of slitwidth

Answer

may increase or decrease

Answer

decreases with decrease of slitwidth

Answer

increases with increase in slitwidth

Wave Optics

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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