Class 9 Physics MCQs – Certification Test 65

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MCQ 65: If a 1 m long steel wire having area 5 * 10^-5 is stretched through 1 mm by force of 10, 000 N then young modulus of wire is:

2 * 10¹¹ N m^-2
3 N m^-4
4 N m^-2
5 N m^-2

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