Question

The frequency of a sound wave is 250 Hz and what is the time period?​

Answer 1

Step-by-step explanation:

frequency = 1÷t

t=2÷250

=0.004 s

I hope it helps you

Answer 2

$f = 250 \: Hz \\ \\ T = ? \\ \\ = > T = \frac{1}{ f} \\ \\ = \frac{1}{250} \\ \\ = 0.004 \\ \\ \: = 4 \times {10}^{ - 3} sec$