When a parallel beam of light is diffracted at a single slit,
A)the shadow is always sharp.
B)the narrower the slit,the narrower the central diffraction maximum.
C)the narrower the slit,the wider the central diffraction maximum.
D)the width of the central diffraction maximum is independent of the width of the slit.
E)None of these is correct.

Question

Quizplus · Accepted Answer

The narrower the slit, the wider the central diffraction maximum. This is because diffraction effects become more pronounced as the size of the aperture approaches the wavelength of the light passing through it, leading to a wider spread of the light on the other side.

When a Parallel Beam of Light Is Diffracted at a Single