Two identical wires of substances ‘ P ’ and ‘ Q ’ are subjected to equal stretching force along the length. If the elongation of ‘ Q ’ is more than that of ‘ P ’, then

Question

Two identical wires of substances ‘ P ’ and ‘ Q ’ are subjected to equal stretching force along the length. If the elongation of ‘ Q ’ is more than that of ‘ P ’, then, both P and Q are equally elastic, P is more elastic than Q, P is plastic and Q is elastic, Q is more elastic than P

MARKS App · Accepted Answer

ϒ = F A ∆ l l F A = s a m e f o r b o t h ∴ Y ∝ 1 ∆ l ∆ l Q > ∆ l P ∴ Y P > Y Q

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