NEET2014Physics-Elasticity

NEET 2014 Physics Young's Modulus MCQ Question

Type: MCQ-conceptual-Medium-Class 11

Copper of fixed volume V is drawn into wire of length l. When this wire is subjected to a constant force F, the extension produced in the wire is Δl. Which of the following graphs is a straight line?

A

Δl versus 1/l

B

Δl versus l²

C

Δl versus 1/l²

D

Δl versus l

Correct Answer

Option A

Detailed Explanation

The extension Δl is inversely proportional to the length l for a given volume and force, making Δl versus 1/l a straight line.

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