If the amplitude of a standing wave is doubled, the energy in the wave increases by a factor of
A) .
B) .
C) 1.
D) 2.
E) 4.

Name: If the amplitude of a standing wave is doubled, the energy in the wave increases by a factor of A) . B) . C) 1. D) 2. E) 4.
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Question

If the amplitude of a standing wave is doubled, the energy in the wave increases by a factor of
A) . 
B) . 
C) 1. 
D) 2. 
E) 4.

Quizplus · Accepted Answer

The energy in a wave is proportional to the square of the amplitude. Doubling the amplitude would result in a 4 times increase in energy (2²=4). Therefore, the correct answer is E.

If the Amplitude of a Standing Wave Is Doubled, the Energy