What is the frequency of a wave with a time period T = 0.0050 seconds?
Answer and explanation
Correct answer: B. 200 Hz
- Step 1: Frequency is the reciprocal of the period: f = 1 / T.
- Step 2: f = 1 / 0.0050 s = 200 Hz.
Answer
200 Hz.
Why not the others: '50 Hz' misplaces decimal point; '500 Hz' computes 1/0.002; '20 Hz' drops a zero.
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