Question

16. The frequency of a sound wave is 250Hz and its wavelength is 100cm. The distance travelled
by the sound wave in the time taken to produce 100wave is​

Answer 1

Answer:

100 meters

Explanation:

As per the given data, we have

λ=100cm=1metre

n=250Hz

Number of waves produced=N=100

Distance travelled=s=?

We know that s=speed×time=v×t and v=λ×n

The time taken to produce one wave is known as Time Period T

It is given by T= 1/n

​t=T×N

s=v×t=λ×n×t=λ×n×T×N

=λ×n× 1/n ×N=λ×N

=1×100=100metres