Question

A string vibrates with a frequency of 500 HZ. If the distance between a crest and the next trough is 10 cm then find the velocity and time period of the wave.

Please answer this it's really Urgent. Please help. ​

Answer 1

Given :-

• Frequency (f) = 500Hz
• Wavelength (λ) = 10cm = 10/100m = 0.1m .

To Find :-

• Velocity (v) = ?
• Time period (t) = ?

Solution :-

• Find velocity of wave.

=> V = f × λ

=> V = 500 × 0.1

=> V = 50m/s .

• Find time period of wave.

=> f = 1/t

=> 500 = 1/t

=> t = 1/500

=> t = 0.002 sec.