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DOP2 Pg 8.156 Q50

DOP2 Pg 8.156 Q50

Question Image
Grade:12th pass

1 Answers

Abhishek Kumar
askIITians Faculty 253 Points
6 years ago
They will have the same area when both the length and breadth change by the same amount for both.
Let it happens at temperature T.
So,
L\alphabrass(T-10)=L\alphasteel(T-20) (Initial length and breadth of both is same)
Solve for T (L cancels out, rest are given)

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