SAT Subject Physics Practice Question 305: Answer and Explanation

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Question: 305

1. The diagram below shows a set of open-ended pipes with waves vibrating inside them.

Which of the diagrams shows the pipe containing waves with the longest wavelength?

A.
B.
C.
D.
E.

Correct Answer: B

Explanation:

The correct answer is (B). There is only 1/2 of a wave shown in the pipe. The wave is 4 times longer than the pipe in which it is vibrating. The equation for finding the length of the pipe is

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