A wave has frequency 50 Hz. Find the time for one complete wave.

Solution & explanation

1. Given: f = 50 Hz.

2. Find: T in s

3. Period and frequency are reciprocals.

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

4. Substitute the frequency.

   $$T=\frac{1}{50}$$

5. Divide 1 by the frequency.

   $$T=\frac{1}{50}$$

6. State the result with units: T = 0.02 s

T = 0.02 s