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JEE · NEET Previous Year Question

$With rise in temperature, the Young's modulus of elasticity$

Topic: JEE PYQ

Answer: B. Full step-by-step solution below.

A $changes erratically$
B $decreases$
C $increases$
D $remains unchanged$

Correct answer: B

Solution

(b) y = \frac{F / A}{Δ l / l} = \frac{F / A}{α Δ T} as Δ T ↑, y ↓

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