SAT Subject Physics Practice Question 481: Answer and Explanation

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Question: 481

12. The frequency of a wave is 4 cycles per second, and its speed is .08 meters per second.

What is the period of one of the waves?

A. .25 seconds
B. .55 seconds
C. 3.125 seconds
D. .02 seconds
E. 12.55 seconds

Correct Answer: A


The correct answer is (A). The period of a wave is the inverse of the frequency f = 1/T.

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