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By rocket a boat a child produce surface water waves on a previously quiet lake.it is obserb that the boat performs 12 oscillation in 30 s and also that a given wave crests reaches shore if 15 meter away in 5 seconds find A) frequency B) speed C) wavelength of the wave

By rocket a boat a child produce surface water waves on a previously quiet lake.it is obserb that the boat performs 12 oscillation in 30 s and also that a given wave  crests  reaches shore if 15 meter away in 5 seconds find 
A) frequency 
B) speed
C) wavelength of the wave

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Grade:12th pass

1 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
4 years ago
Dear student

A) freq = 12/30 = 0.4 hertz

B) speed = 15/5 = 3 m/s

C) wavelength = speed / freq = 3/0.4 = 7.5 m

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