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Sahay Sir > Question Answers > NCERT Exemplar Class 11 > Physics > Chapter 13 - Oscillations > A person normally weighing 50 kg stands on a massless platform which oscillates up and down harmonically at a frequency of 2.0s−1 and an amplitude 5.0 cm. A weighing machine on the platform gives the persons weight against time. (a) Will there be any change in weight of the body, during the oscillation? (b) If answer to part (a) is yes, what will be the maximum and minimum reading in the machine and at which position?

A person normally weighing 50 kg stands on a massless platform which oscillates up and down harmonically at a frequency of 2.0s−1 and an amplitude 5.0 cm. A weighing machine on the platform gives the persons weight against time. (a) Will there be any change in weight of the body, during the oscillation? (b) If answer to part (a) is yes, what will be the maximum and minimum reading in the machine and at which position?

Find the displacement of a simple harmonic oscillator at which its PE is half of the maximum energy of the oscillator.