A floating object oscillates up and down 2 complete cycles in 1 second as a water wave of wavelength 5 meters passes by.The speed of the wave is
A)2 m/s.
B)5 m/s.
C)10 m/s.
D)15 m/s.
E)none of these

Question

Quizplus · Accepted Answer

The frequency of the wave can be calculated as f = 2/T, where T is the time for 2 complete cycles (1 second in this case). So, f = 2/1 = 2 Hz.

The speed of the wave can be calculated as v = fλ, where λ is the wavelength. So, v = 2 × 5 = 10 m/s.

Therefore, the best choice is C) 10 m/s.

A Floating Object Oscillates Up and Down 2 Complete Cycles