Question

Velocity of sound in steel is 5000m/s. A sound wave of frequency 1000Hz is produced in steel rail of length 20m.
Calculate total number of waves produced in the rail.​

Answer 1

Answer:

4

Explanation:

Dear Student ,

Here in this case , n = 1000 Hz and V = 5000 m/s

So the wavelength is , λ=V/n=5000/1000=5 m

So the number of waves produced in 20 m length of the steel rail is = 20 /5 = 4

so , 4 number of waves will be produced in the rail.

Regards

Answer 2

Answer:

A sound wave of frequency 1000 Hz is produced in a steel rail of length 20 m.

Calculate total number of waves produced in the rail. [14 Waves]

So the number of waves produced in 20 m length of the steel rail is =

20 /5 = 4 numbers