Frequency is measured in which unit?

Frequency is measured in which unit?

• A. Hz
• B. Joule
• C. Volt
• D. Coulomb

Answer: (A)

Frequency measures how often something repeats in a given time. The natural unit for this is the hertz (Hz), defined as one cycle per second. This makes sense for waves and oscillations—if a signal completes 60 cycles each second, its frequency is 60 Hz. In SI terms, frequency is also expressed as reciprocal seconds (s^-1). The other options represent different physical quantities: joule is energy, volt is electric potential, and coulomb is electric charge, none of which describe repetition rate.

Frequency measures how often something repeats in a given time. The natural unit for this is the hertz (Hz), defined as one cycle per second. This makes sense for waves and oscillations—if a signal completes 60 cycles each second, its frequency is 60 Hz. In SI terms, frequency is also expressed as reciprocal seconds (s^-1).

The other options represent different physical quantities: joule is energy, volt is electric potential, and coulomb is electric charge, none of which describe repetition rate.