Question

Frequency of vibration in a wire is 500 Hz and and the distance covered by the wave in one second is 20 cm. The velocity of wave is


please tell :(​

Answer 1

Answer:

2500

Explanation:

A sound wave of frequency 500 Hz covers a distance of 1000 m in 5 s between points x and y. Then the number of waves between x and y are

Answer 2

Given: Frequency of vibration in a wire is 500 Hz and the distance covered by the wave in one second is 20 cm.

To find: Velocity of the wave

Explanation: The distance covered by the wave in one second is called the velocity.

Wavelength= 20 cm = 0.2 m

Frequency= 500 Hz

Therefore,

time period= 1/ frequency

= 1 / 500

= 0.002 second

The formula relating velocity, time period and wavelength is:

Velocity= Wavelength / Time period

= 0.2/0.002

= 100 m/s

Therefore, the velocity of the wave is 100 m/s.