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Delhi Police Constable Exam Model Paper 9

Question : 36

Total: 100

Hertz is the SI unit of ________.

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Physical Quantity	About	SI Unit
Frequency	Number of occurrences of a repeating event per unit of time	Hertz (Hz)
Force	Any interaction which when unopposed will change the motion of an object	Newton (N)
Energy	Energy is defined as the ability to do work	Joule (J)
Pressure	The force applied is perpendicular to the surface of objects per unit area	Pascal (Pa)