An observer standing near the sea shore/min. If the wavelength of the water wave is 10 m then the velocity of water wave is :

Question

An observer standing near the sea shore/min. If the wavelength of the water wave is 10 m then the velocity of water wave is : (A)  540 ms-1  (B)  5.4 ms-1  (C)  0.184 text ms-1  (D)  9 text ms-1

Tardigrade Admin · Accepted Answer

Frequency, n=(54/60) ⇒ n=(9/10) ∴ Velocity, v=nλ =(9/10)× 10=9 m/s

Q. An observer standing near the sea shore/min. If the wavelength of the water wave is $10 m$ then the velocity of water wave is :

$540 m s^{- 1}$

$5.4 m s^{- 1}$

$0.184 m s^{- 1}$

$9 m s^{- 1}$

$48.6 m s^{- 1}$

Frequency, $n = \frac{54}{60}$
$\Rightarrow$ $n = \frac{9}{10}$
$∴$ Velocity, $v = nλ$ $= \frac{9}{10} \times 10 = 9 m / s$

Q. An observer standing near the sea shore/min. If the wavelength of the water wave is 10m then the velocity of water wave is :

540ms−1

5.4ms−1

0.184ms−1

9ms−1

48.6ms−1

Frequency, n=6054​ ⇒ n=109​ ∴ Velocity, v=nλ =109​×10=9m/s