Three masses $$700g$$, $$500g$$, and $$400g$$ are suspended at the end of a spring a shown and are in equilibrium. When the $$700g$$ mass is removed, the system oscillates with a period of $$3$$ seconds, when the $$500$$ gm mass is also removed, it will oscillate with a period of

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When mass $$700$$ gm is removed, the left out mass (500$$ $$+$$ $$400) gm oscillates with a period of $$3$$ $$sec$$∴$$3=t=2$$π(500+400)k$$      …...$$(i) When $$500$$ gm mass is also removed, the left out mass is $$400$$ gm.   ∴t'$$=2$$$$π$$$$400k$$                       …..(ii)⇒$$3t$$'$$=900400$$⇒t'$$=2sec$$

Three masses 700g, 500g, and 400g are suspended at the end of a spring a shown and are in equilibrium. When the 700g mass is removed, the system oscillates with a period of 3 seconds, when the 500 gm mass is also removed, it will oscillate with a period of

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