Question

The wavelength of waves produced by a source is 50 cm. If wave velocity is 25 $\frac{m}{s}$, what is the time required for one wave?

• A. 0.02 s
• B. 0.04 s
• C. 0.06 s
• D. 0.03 s

Answer 1

The correct option is A

0.02 s

frequency = $\frac{velocity}{wavelength}$ = $\frac{25}{0.5}$ = 50 Hz

Time taken to complete one wave = $\frac{1}{frequency}$ = $\frac{1}{50}$ = 0.02 s