Hertz is a unit of ____.

Option(4)

CONCEPT:

• Frequency: In physics, it is defined as the number of waves that pass from the fixed unit of time. 
  • The S.I unit of frequency is Hertz. 

EXPLANATION:

• Frequency: The number of waves oscillating per unit time is called frequency.

⇒ Frequency = 1/T 

Where T is the time period.

Additional Information

• Pressure: It is those physical quantities which is defined as a force acting perpendicular to the surface of the body is called Pressure.
• Electric Current: It is defined as the no of electrons flowing in per unit of time is called current.