In a ripple tank experiment a vibrating plate i... - WAEC Physics 1993 Question
In a ripple tank experiment, a vibrating plate is used to generate ripples in the water. If the distance between two successive troughs is 3.5 cm and the wave travels a distance of 31.5 cm in 1.5 s, calculate the frequency of the vibrator
A
3.0Hz
B
6.0Hz
C
12.0Hz
D
27.0Hz
correct option: b
λ = 3.5cm V =D/T = 31.5/1.5 = 21; f = V/ λ = 6.0
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