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Physics Easy PPSC Uploaded: 06 Aug 2026

What is the unit of frequency?

  • A Hertz
  • B Joule
  • C Watt
  • D Newton
Correct Answer: Option A — Hertz
Explanation:
Hertz (Hz) is the SI unit of frequency, named after Heinrich Hertz. It measures the number of complete cycles or oscillations of a wave that occur per second, commonly used for sound waves, radio waves, and alternating current.
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