Question

a sound wave of frequency 500 hertz covers distance of 100 metre in 5 second between the points X and Y the number of waves between X and Y​

Answer 1

frequency is 500Hz

so time period is 1/frequency=1/500 =0.002

1 wave takes 0.002sec time to travel from one node to node or Antinode to next Antinode

distance=100m

time =5sec

no of waves =time/time period.

5/0.002

2,500 Waves pass through 100 m in 5 sec

Answer 2

The correct answer is 2500 waves.