Chapter 9, Problem 8STP

To determine

To Choose: The correct option.

Answer to Problem 8STP

Option B

Explanation of Solution

Introduction:

When two waves pass through each other in the same medium, the interference of waves occurs which depends upon the phase of the waves.When crest of one wave interacts with crest of other, it is constructive while it is destructive when crest of one wave interacts with trough of other or the vice versa

When two waves travelling in a same medium interacts each other at some point, this interaction is called interference and this is of two types constructive and destructive When crest of one wave interacts with crest of other, it is constructive while it is destructive when crest of one wave interacts with trough of other or the vice versa.Therefore, option B is correct.

When crest of two identical wave meets, a third wave is formed with twice the amplitude of each wave. Thus, the option A,C and D are incorrect.

Conclusion:

Thus, the option B is correct.