Question

Statement I: While calculating intensities in interference pattern, we can add the intensities of the individual waves.
Statement II: Principle of superposition is valid for liner waves.
A. Statement I is True, statement II is True, Statement II is a correct explanation for Statement I.
B. Statement I is Ture, Statement II is Ture, Statement II is NOT a correct explanation for Statement I.
C. Statement I is True, Statement II is False.
D. Statement I is False, Statement II is True.

Answer 1

Correct Answer - d
Intensity `prop ("amplitude")^(2)` and hence a non-linear physical quality. So we connot add intensities direcetly, as principle of superposition is valid for linear waves only.