Question

the sound waves has a frequency 2KHZ and wavelength of 45cm, it takes 4sec. to travel. calculate the distance it travels in 4sec​

Answer 1

for identifying the distance if second first of all we should have the speed.

therefore using formula-

speed =wavelength × frequency

speed= 2 ×45.

=90

now after that we know that distance is equal to speed ×

time.

therefore distance is equal to -

90×4=360m

hope it will help you

Answer 2

I hope it's Helpful for you........