In a ripple tank experiment, a vibrating plate is used to generate ripples in the…

Physics WAEC 1993

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

  • 3.0Hz
  • 6.0Hz checkmark
  • 12.0Hz
  • 27.0Hz
  • 73.5Hz

The correct answer is: B

Explanation

λ = 3.5cm V =D/T = 31.5/1.5 = 21; f = V/ λ = 6.0
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