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Indian Navy 10+2 B.Tech Cadet Waves & Oscillations — practice questions

2 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.

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A child's swing is pushed gently at its natural frequency and the amplitude grows large. This phenomenon is caA wave on a lake has wavelength $4$ m and frequency $0.5$ Hz. Its speed is: