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45.Two pendulums differ in lengths by 22 cm.They oscillate at the same place such thatone of them makes 15 oscillations and theother makes 18 oscillations during the sametime. The lengths (in cm) of the pendulumsare :-li lo |
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Answer» T/15=2π√l/gT/18=2π√l-22/gdividing both the equations18/15=√l/l-226/5=√l/l-2236/25=l/l-2236(l-22)=25l36l-36*22=25l36*22=11ll=36*2=72cmSo second length=72-22=50cm |
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