Question

What will be the wave velocity, if the radar gives 54 waves per min and wavelength of the given wave is 10 m ?

• A. 4 m/s
• B. 6 m/s
• C. 9 m/s
• D. 5 m/s

Answer 1

Answer: (C)

9 m/s

Answer 2

n = $\left( \frac{54}{60} \right)$, l = 10

v = nl

v = $\frac{54}{60}$ × 10 = 9 m/s