The Young's modulus of a wire of length L and radius r is Y N/m2. If t – McqOptions

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1.	The Young's modulus of a wire of length L and radius r is Y N/m2. If the length and radius are reduced to L/2 and r/2, then its Young's modulus will be [MP PMT 1985; MP PET 1997; KCET 1999]
A.	Y/2
B.	Y
C.	2Y
D.	4Y
Answer» C. 2Y

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