Question

Two waves generated from a coherent source and an incoherent source respectively, are propagating on a stretched string.

Statement $1$: The resultant wave can be obtained by using the principle of superposition of waves.
Statement $2$: Principle of superposition of waves is not applicable on the wave obtained from incoherent sources.

• A. Statement $1$ is true, statement $2$ is false
• B. Statement $1$ is false, statement $2$ is true
• C. Both the statements are true.
• D. Both the statements are false.

Answer 1

The correct option is A Statement $1$ is true, statement $2$ is false

The principle of superposition is valid for all waves irrespective of their source.
However if the source of wave are coherent, then a much pronounced interference pattern is observed. Such an interference is sustained.
The interference of waves from incoherent sources is not sustained.