Q

An anchored boat is rocked by waves whose consecutive crests are 100 m apart. The wave speed is 25 m/s. What is the rocking frequency?

RRB Group-D 05/11/2018 (Shift-II) 2018
✓ Answer: B 0.25 Hz
f = v/λ = 25/100 = 0.25 Hz.
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