Question

With single-slit diftion, the central-most portion of the illuminated region is _________________ with diftion fringes on either side of ___________________________ intensity.

a. Brightest, diminishing
b. Darkest, constant
c. Darkest increasing
d. Brightest, constant

Answer 1

The central-most portion of the illuminated region in single-slit diffraction is the brightest, with diffraction fringes on either side of diminishing intensity.

Step-by-step explanation:

The correct answer is a. Brightest, diminishing. In single-slit diffraction, when monochromatic light passes through a single slit, it produces a diffraction pattern with a central maximum and smaller, dimmer maxima on either side. The central maximum is the brightest part of the pattern, while the maxima on either side have diminishing intensity. This means that the intensity of the diffraction fringes decreases as you move away from the central maximum.