Question

What is the speed of a 150 Hz wave whose wavelength is measured to be 0.3 m?

• A. 45 m/sec
• B. 50 m/sec
• C. 0.002 m/sec
• D. none

Answer 1

The correct option is A

45 m/sec

Step 1: Given

Frequency (f) = 150 Hz

Wavelength = 0.3 m

Step 2: Calculation

Speed of wave (v) = wavelength × frequency

$$\begin{gathered} v=150\times 0.3 \\ v=45m/sec \end{gathered}$$

Hence, option (A) is the correct option.