Question

A dipper sends 300 ripples per minute across a water tank . the distance separating two successive ripples is found to be 3 cm . find the wavelength , the period , and the speed of the produced waves

Answer 1

~$\small \blue {\sf{Answer }}$✨❤

Frequency (f)= number of oscillations / time taken =15/1=15 Hz

The distance between a crest and a trough is equal to half of wavelength (λ).

or 20=λ/2 or λ=40 cm

Velocity of wave, v=fλ=15×40=600cm/s

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