Chapter 24, Problem 17Q

(a)

To determine

To explain: The effect of increasing the slit width for diffraction.

Answer to Problem 17Q

The diffraction will be decreased.

Explanation of Solution

Introduction: The pattern resulting from superimposing of two waves is known as interference. Interference can be destructive or constructive.

Destructive interference occurs after the crest of a wave overlaps the trough of another wave. The waves destructively interfere and also, cancel each other, once crest of one & trough of other interfere.

The diffraction is inversely propositional to the width of slit. When a student increases slit width in single-slit diffraction experiment then the spacing of fringes will be decrease.

(b)

To determine

To explain: The effect of increasing the slit wavelength for diffraction.

Answer to Problem 17Q

The diffraction will be increased.

Explanation of Solution

Introduction: The pattern resulting from superimposing of two waves is known as interference. Interference can be destructive or constructive.

Destructive interference occurs after the crest of a wave overlaps the trough of another wave. The waves destructively interfere and also, cancel each other, once crest of one & trough of other interfere.

The diffraction is inversely propositional to the width of slit. In single slit diffraction, when a student increases wavelength of light then the spacing of fringes will be increase.