Question

If the time period of a wave is 0.004sec ,find the frequency of the wave ​

Answer 1

Answer:

$t = 0.004 \\ t = 2\pi \div w \\ w = 2\pi \: \: f \\ 2\pi \div t = 2\pi \: \ \: f \\ 1 \div t = f \\ 1 \div .004 = f \\ f = 250$