SAT Subject Physics Practice Question 422: Answer and Explanation

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Question: 422

13. While anchored at sea, a captain notices the wave peaks are separated by 16 m and occur at a rate of 1 wave every 2 seconds. What is the velocity of these waves?

A. 4 m/s
B. 8 m/s
C. 16 m/s
D. 32 m/s
E. 64 m/s

Correct Answer: B

Explanation:

The correct answer is (B). The velocity of a wave is v = λ·f. Substitute into the equation and solve.

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