A wave has period 0.02 s. Calculate frequency.

Solution & explanation

1. Given: T = 0.02 s.

2. Find: f in Hz

3. Use the reciprocal relation.

   $$f=\frac{1}{T}$$

4. Substitute period in seconds.

   $$f=\frac{1}{0.02}$$

5. Divide 1 by the period.

   $$f=50.0$$

6. State the result with units: f = 50 Hz

f = 50 Hz