A longitudinal wave travels at a speed of $0.3 m s^{- 1}$ and the frequency of wave is $20 H z$ . Find the separation between two consecutive compressions.

0.5 c m

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1 c m

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1.5 c m

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2 c m

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Solution

The correct option is C $1.5 c m$
Given,
$v = 0.3 m / s f = 20 H z$

The wavelength, wave velocity and frequency relationship are given as follows.
$λ = \frac{v}{f}$ .

$= \frac{0.3 m / s}{20 H z} = 0.015 m .$

That is $1.5 \times 10^{- 2} m$

Hence, the separation between two consecutive compressions, i.e., the wavelength of the wave is 0.015 m or 1.5 cm

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A longitudinal wave travels at a speed of 0.3 ms−1 and the frequency of wave is 20 Hz. Find the separation between two consecutive compressions.

The correct option is C 1.5 cmGiven,v=0.3 m/sf=20HzThe wavelength, wave velocity and frequency relationship are given as follows.λ=vf.=0.3m/s20Hz=0.015m.That is 1.5×10−2mHence, the separation between two consecutive compressions, i.e., the wavelength of the wave is 0.015 m or 1.5 cm

A longitudinal wave travels at a speed of $0.3 m s^{- 1}$ and the frequency of wave is $20 H z$ . Find the separation between two consecutive compressions.