A sine wave has a period of 0.0083 seconds. What is its frequency?

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Multiple Choice

A sine wave has a period of 0.0083 seconds. What is its frequency?

Explanation:
Frequency is how many cycles occur each second, and the period is the time for one cycle. They are reciprocals: f = 1 / T. With T = 0.0083 seconds (8.3 ms), f = 1 / 0.0083 ≈ 120.48 Hz. So the sine wave repeats about 120 times per second. The other options would require longer periods (for example, 1/60 ≈ 0.0167 s for 60 Hz, 1/30 ≈ 0.0333 s for 30 Hz, and 1/12 ≈ 0.0833 s for 12 Hz), which don’t match the given 0.0083 s.

Frequency is how many cycles occur each second, and the period is the time for one cycle. They are reciprocals: f = 1 / T. With T = 0.0083 seconds (8.3 ms), f = 1 / 0.0083 ≈ 120.48 Hz. So the sine wave repeats about 120 times per second. The other options would require longer periods (for example, 1/60 ≈ 0.0167 s for 60 Hz, 1/30 ≈ 0.0333 s for 30 Hz, and 1/12 ≈ 0.0833 s for 12 Hz), which don’t match the given 0.0083 s.

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