A wave of amplitude A interferes with another wave of the same kind with the same frequency whose amplitude is also A. The resulting wave
A) has an amplitude of 2A.
B) has an amplitude between 0 and A.
C) has an amplitude between A and 2A.
D) has an amplitude between 0 and 2A.

Question

Quizplus · Accepted Answer

When two waves of the same kind with the same frequency interfere, the resulting wave has an amplitude that is the sum of the amplitudes of the individual waves. In this case, the two waves have amplitudes of A, so the resulting wave has an amplitude of 2A.

A Wave of Amplitude a Interferes with Another Wave of the Same