Question

The time period of a sound wave is 0.020 s. What is its frequency?​

Answer 1

The time period of a sound wave is 0.020 s its frequency is 50Hz.

Answer 2

Answer:

Time period = 0.020 sec

Here in the formula v represents frequency and t represents time.

$v = \frac{1}{t} \\ v = \frac{1}{0.020} \\v = \frac{1}{0.02} \times \frac{100}{100} = \frac{100}{2} \\ v = 50hz$

So, the frequency is 50hz.

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