Question

define frequency ...​

Answer 1

Explanation:

Frequency describes the number of waves that pass a fixed place in a given amount of time. ... Usually frequency is measured in the hertz unit, named in honor of the 19th-century German physicist Heinrich Rudolf Hertz. The hertz measurement, abbreviated Hz, is the number of waves that pass by per second.

Answer 2

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☛Frequency is defined as number of oscillation of a body in one second/ per second.

• SI unit of frequency is hertz ( Hz )

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☛Oscillation:-To and Fro motion of an object or particles about it's mean/ equilibrium position is known as oscillation.

• Rapid oscillation is known as vibration.

☛Wave:-Wave is a disturbance which carries energy from one point to another point.

• Motion of particles and motion of wave are two different.

Characteristics of wave :-

☛ wave length:-Wave length is defined as the distance covered by a wave to complete one oscillation/vibration.

☛Amplitude:- It is defined as the maximum displacement of a body or particle about it's mean position.

☛Time period:- It is defined as the time taken by a body or particle to complete one oscillation.

☛Frequency :-Frequency is defined as number of oscillation of a body in one second.