2 pendulum bobs X and Y have the same length and sixe.(adsbygoogle = window.adsbygoogle || []).push({});

( pendulum bob X is made from copper while Y -> polystyrene )

there is another pendulum Z with variable length ( Z -> lead )

when pendulum Z is set oscillating with frequency f each time at different length, pendulum X and Y will be forced into oscillation. sketch the graph to show the variation of amplitude for pendulum X and Y with frequency, f.

i know that is should be the pendulum X which has a higher peak in the graph compared to pendulum Y. but, how should i explain it using physics.

since T=2pi sqrt(l/g), mass seems to be independent of the frequency.

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# Homework Help: Shm (2)

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