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A wire of length L and radius  rigidly fixed at one end. On stretching the other end of the wire with a force F, the increase in its  length is  If another wire of same material but of length 2L and radius  is stretched with a force  2F, the increase in its length will be

a)

b)

c)

d)



Question ID - 56428 | SaraNextGen Top Answer

A wire of length L and radius  rigidly fixed at one end. On stretching the other end of the wire with a force F, the increase in its  length is  If another wire of same material but of length 2L and radius  is stretched with a force  2F, the increase in its length will be

a)

b)

c)

d)

1 Answer
127 votes
Answer Key / Explanation : (b) -

(b)

Young’s modulus

Since for same material Young’s modulus is same,

or

or

127 votes


127