Question

32.If a sound wave travels with a frequency of 1.25 x 104Hz at 344 ms-1, the wavelength will be​

Answer 1

SoluTion :

✴ Given :-

• Frequency of sound wave = 1.25×10$^4$Hz
• Velocity of sound wave = 344m/s

✴ To Find :-

• Wavelength of sound wave

✴ Concept :-

✈ Frequency of wave is defined as ratio of velocity of wave to the wave length of wave.

Mathrmatically,

$\bigstar\:\boxed{\bf{\pink{frequency=\dfrac{velocity}{wavelength}}}}$

✴ Calculation :-

$\implies\sf\:\lambda=\dfrac{v}{\nu}\\ \\ \implies\sf\:\lambda=\dfrac{344}{1.25\times 10^{4}\:m}\\ \\ \implies\:\boxed{\sf{\large{\orange{\lambda=2.75\times 10^{-2}\:m}}}}$

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✒ Wave length of sound wave = 0.0275m

Answer 2

$\tt{\huge{\orange { ---------- }}}$

QUESTION :

32.If a sound wave travels with a frequency of 1.25 x 104Hz at 344 ms-1, the wavelength will be..............

SOLUTION :

We know that :

V = F × Lambda

Where,

V is the velocity of the sound wave.

F is the frequency of the sound wave .

Lambda is the wavelength of the sound wave.

$\lambda \: = \dfrac{v}{ \nu}$

So,

Wavelength of the required sounds wave will be :

Wavelength = 344 / 1.25 × 10^4 m.

=> Wavelength = 0.0275 m..... [ A ]

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