wave_mechanics basics_of_mechanical_waves Question 93
Question: An observer standing near the sea shore observes 54 waves per minute. If the wavelength of the water wave is 10m then the velocity of water wave is
[Kerala (Engg.) 2005]
Options:
A) 540 ms-1
B) 5.4 ms-1
C) 0.184 ms-1
D) 9 ms-1
Show Answer
Answer:
Correct Answer: D
Solution:
Number of waves per minute = 54 \ Number of waves per second = 54/60 Now $ v=n\lambda $
Therefore $ n=\frac{54}{60}\times 10=9m/s.
$
BETA
