Question

Sound waves of wavelength 1 cm have a velocity of 340m/s in air what is their frequency​

Answer 1

Answer:

Velocity Of sound = 340m/s. frequency =? frequency = 34000Hz. This frequency is more than 20,000Hz and thus this sound can not be heard by human ear.

Answer 2

Answer:

Wavelength = 1 cm = 0.01 m

Velocity ( v ) = 340 m/s

Velocity = λ × frequency

or , 340 = 0.01 × frequency

or , frequency = 340 / 0.01

frequency = 34000 Hz

Hope this helps!