SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What does frequency measure & what’s the unit?
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The number of waves per second in seconds
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The number of waves per second in hertz
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The time for one wave to cycle in seconds
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The time for one wave to cycle in hertz
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Explanation:
Detailed explanation-1: -Frequency is the rate at which current changes direction per second. It is measured in hertz (Hz), an international unit of measure where 1 hertz is equal to 1 cycle per second. Hertz (Hz) = One hertz is equal to one cycle per second. Cycle = One complete wave of alternating current or voltage.
Detailed explanation-2: -The frequency f of a wave is the number of vibration cycles per second at a certain location X. The unit of frequency is Hertz (Hz) and 1 Hz is the reciprocal of 1 second.
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