Define time-period and frequency. Give their S.I unit.

1.	Define time-period and frequency. Give their S.I unit.
Answer» A time period (denoted by 'T' ) is the time needed for one complete cycle of vibration to pass in a given point. As the frequency of a wave increases, the time period of the wave decreases. The SI unit for time period is seconds. Frequency, the number of waves that pass a fixed point in unit time; also, the number of cycles or vibrations undergone during one unit of time by a body in periodic motion. The symbols most often used for frequency are f and the Greek letters nu (ν) and omega (ω).The SI derived unit of frequency is the hertz (Hz), named after the German physicist Heinrich Hertz. One hertz means that an event repeats once per second. For periodic motion,frequencyisthenumber of oscillations per unittime.Therelationship betweenfrequencyandperiodis.The SIunit forfrequencyisthe cycleper second, which isdefinedto be a hertz (Hz): Acycleis one complete oscillation.

Answer»

A time period (denoted by 'T' ) is the time needed for one complete cycle of vibration to pass in a given point. As the frequency of a wave increases, the time period of the wave decreases. The SI unit for time period is seconds.

Frequency, the number of waves that pass a fixed point in unit time; also, the number of cycles or vibrations undergone during one unit of time by a body in periodic motion. The symbols most often used for frequency are f and the Greek letters nu (ν) and omega (ω).The SI derived unit of frequency is the hertz (Hz), named after the German physicist Heinrich Hertz. One hertz means that an event repeats once per second.

For periodic motion,frequencyisthenumber of oscillations per unittime.Therelationship betweenfrequencyandperiodis.The SIunit forfrequencyisthe cycleper second, which isdefinedto be a hertz (Hz): Acycleis one complete oscillation.

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