Lesson: Chapter 4 — Waves and their applications

4.1.3. Describing a wave 4 of 6 Reset answers

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Question 4

A wave has a period of 0.5 s. What is its frequency?

A 5 Hz B 0.5 Hz C 50 Hz D 2 Hz

The right answer is the one marked above.

2 Hz. f = 1 / T = 1 ÷ 0.5 s = 2 Hz. Two oscillations fit into each second.

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