Question

Audio frequency range of a human ear is 20 Hz to 20,000Hz. express the range in term of time-period?

Answer 1

Hey!

Time period is inversely proportional to frequency that means,

Time period = 1/frequency.

The audio frequency range that is audible to human ear is between 20Hz to 20KHz.

So f1=20Hz and f2= 20KHz or 20000Hz.

Therefore T1 = 1/f1.
= 1/(20 Hz).
= 0.05 s

T2 = 1/f2
= 1/(20,000 Hz)
= 0.00005 s

So the range in terms of time-period is

0.00005 s to 0.05 s.

Hope it helps.

Answer 2

Explanation:

because, t = 1/v

1/20,000Hz = 0.00005 s

= 5×10^-5