Question

The Superposition of crest and trough results in Constructive Interference

• A. False
• B. True

Answer 1

Answer: (A)

False

Answer 2

The superposition of a crest and a trough from two different waves results in destructive interference. In destructive interference, the waves are out of phase by 180 degrees (or $\pi$ radians), leading to a cancellation or reduction in the amplitude of the resultant wave.

Constructive interference occurs when two crests superimpose, or two troughs superimpose, leading to an increase in the amplitude of the resultant wave.

Since the statement claims that the superposition of crest and trough results in constructive interference, it is incorrect.