Question

Two wires of the same material and length are stretched by the same force. Their masses are in the ratio 3:2. Their elongations are in the ratio9 : 42 : 34 : 93 : 2

Solution

The correct option is B 2 : 3Y=FlA△ lor △ l ∝1A Again, m=Alp,m∝ A △ l ∝1m Therefore △ l1△ l2=m2m1=23

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