Question

A sound wave has a frequency of 200 Hz

and a speed of 400 m s–1 in a medium.
Find
the wavelength of the sound wave.​

Answer 1

Step-by-step explanation:

QUESTION ----- calculate the wavelength of a sound wave whose frequency is 220Hz and speed is 440 m/s in a given medium?

ANSWER -----

Formula -

Velocity = Wavelength × Frequency

Using the above mentioned formula,

__________

v = λ × n

__________

where λ denotes Wavelength and n denotes frequency

Given,

v = 440 m/sec

n = 220 Hz

λ = ???

v = λ × n

440 = λ × 220

=> λ = 440 / 220

=> λ = 2

WAVELENGTH (λ) = 2 m

>>>>>>>>>>≥>>>>>>>>>>>>

ANSWER = 2 m

>>>>>>>>>>>>>≥>>>>>>>>>

# AnswerWithQuality

#BAL

Answer 2

» Given:

Frequency = 200 Hz

Speed = 400m/s

» To find -

Wavelength $(\lambda)$

» We know that,

${\purple{\boxed{V = f\lambda}}}$

» Solution -

by putting the values

$400 = 200 \times\lambda \\ \\ \\ \lambda = \frac{400}{200} \\ \\ \\ {\pink{\boxed{\lambda = 2\:m}}}$

★Additional Information★

$\purple{Frequency}$ - Frequency is the number of occurrences of a repeating event per unit of time. SI unit - Hertz (Hz).

Frequency of sound that humans can hear ranges from 20Hz to 20,000 Hz.