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JEE Main 3 Apr 2025 Shift 1 Paper

Section: Physics

Question : 31 of 75

Marks: +1, -0

M

F=-k x^3

k

n

T

L_0

L_1

$n r T \ln \left( \frac{L_1}{L_0} \right) + M g (L_1 - L_0) + \frac{k}{4} (L_1^4 - L_0^4)$
$3 n r T \ln \left( \frac{L_1}{L_0} \right) + 2 M g (L_1 - L_0) + \frac{k}{3} (L_1^3 - L_0^3)$
$n r T \ln \left( \frac{L_1^2}{L_0^2} \right) + \frac{M g}{2} (L_1 - L_0) + \frac{k}{4} (L_1^4 - L_0^4)$
$n r T \ln \left( \frac{L_1}{L_0} \right) + M g (L_1 - L_0) + \frac{3k}{4} (L_1^4 - L_0^4)$

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