Question

what will be the wave velocity if the radar gives 54 waves per minute and wavelength of the given wave is 10 meter

Answer 1

-нσℓα мαтє
ƒσℓℓσω мє αη∂ мαяк мє αѕ вяαιηℓιєѕт

velocity = lamda * frequency
v=10*54. *(since it is given that it gives 54 waves per minute)
v =540

so the velocity of wave if 540

Answer 2

Answer: The correct answer is 9 m/s.

Explanation:

The expression for the relation between speed of the wave and wavelength of the wave is as follows;

$v=f\lambda$

Here, f is the frequency of the wave, v is the wave velocity and $\lambda$ is the wavelength of the wave.

It is given in the problem that the wave velocity if the radar gives 54 waves per minute and wavelength of the given wave is 10 meter.

f= 50 waves per 60 second.

Put $\lambda= 10 m$ and f= 50 waves per minute in the above expression.

$v=\frac{54}{60} (10)$

$v =9 m/s$

Therefore, the wave velocity is 9 m/s.