Question

distance travelled by wave is 2.5 meter and its wave velocity is 40 m/s then find its frequency

Answer 1

Given :

Distance travelled by the wave = 2.5m.

Velocity = 40m/s

To find :

Frequency

Solution :

The number of waves that pass through a given point in one second is called frequency.

SI unit of frequency is Hertz (Hz)

Frequency and wavelength are related as

• v = C/λ

here,

v denotes frequency

C denotes velocity

λ denotes wavelength

Substituting all the given values in the equation,

➠ v = C/λ

➠ v = 40/2.5

➠ v = 16Hz

thus, the frequency is 16Hz${.}$

Answer 2

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• The number of waves that pass through a given point in one second is called frequency.

• SI unit of frequency is Hertz (Hz)

Frequency and wavelength are related as :

v = C/λ

here,

v denotes frequency

C denotes velocity

λ denotes wavelength.

Substituting all the given values in the equation,

➠ v = C/λ

➠ v = 40/2.5

➠ v = 16Hz Ans.