When a string is vibrating in a standing wave pattern the power transmitted across an antinode, compared to the power transmitted across a node, is:
A)more
B)less
C)the same (zero)
D)the same (non-zero)
E)sometimes more, sometimes less, and sometimes the same

Question

Quizplus · Accepted Answer

At a node, the displacement is zero, so no power is transmitted. At an antinode, the displacement is maximum, but the power transmitted is still zero because the energy is confined within the standing wave pattern and not transmitted across the string.

When a String Is Vibrating in a Standing Wave Pattern