Question

can you tell me this a answer ​

Answer 1

$\bold{FREQUENCY}$

Frequency is the number of waves or formed or oscillatiobs done in given particular times.

S. I unit if frequency is hertz (Hz) .

The range of 20 - 20 KHz is said to be audible range as human ears can receive waves in this range.Sound of waves formed with more or less than the audible range is inaudible.

We know

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

Where,

V is velocity

f is frequency

$\lambda$ is wavelength

Velocity = 339 m \s

Wavelength = 1.5 cm

Convert it into meter,

= $\mathsf{\dfrac{1.5}{100} }$

= 0.015m

On placing values,

$\mathsf{\dfrac{V}{\lambda} = f }$

$\mathsf{\dfrac{339}{0.015} = f }$

$\huge \boxed{ \mathsf{22600 \: Hz = f }}$