JEE Main 09 April 2016 Paper

Section: Physics

Question : 26 of 90

Marks: +1, -0

A uniformly tapering conical wire is made from a material of Young’s modulus Y and has a normal, unextended length L. The radii, at the upper and lower ends of this conical wire, have values R and 3R, respectively. The upper end of the wire is fixed to a rigid support and a mass M is suspended from its lower end. The equilibrium extended length, of this wire, would equal :

[Main 9 Apr 2016]

L(1+
2
9
Mg
πYR2
)
L(1+
1
3
Mg
πYR2
)
L(1+
1
9
Mg
πYR2
)
L(1+
2
3
Mg
πYR2
)

Validate

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