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A sound wave travelling in a medium is r...

A sound wave travelling in a medium is represented as shown in figure.
If vibrating source of sound makes 360 oscillations in 2 minutes, then the amplitude, wavelength `(lambda)` and frequency (V) of the sound wave respectively are (Take velocity of sound as 342 m `s^(-1))`

A

1 m, 114 m and 3 Hz

B

2 m, 3 m and 14 Hz

C

1 m, 5 m and 20 Hz

D

1 m, 100 m and 10 Hz

Text Solution

Verified by Experts

The correct Answer is:
A
Here, amplitude of sound wave = 1 m (given)
Wavelength of sound wave, `lambda = (v_(s))/(upsilon)`
In 2 minutes, number of oscillations `= 360`
In 1 second, number of oscillations `= (360)/(2xx60) = 3`
`therefore` Frequency of sound wave, `upsilon = 3` Hz
Put the value of `upsilon = (342)/(3) = 114` m
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