Physics · 2020
JEE Main · 6 September 2020, Shift 1 · Q6
An object of mass m is suspended at the end of a massless wire of length L and area of cross-section, A. Young modulus of the material of the wire is…
An object of mass m is suspended at the end of a massless wire of length L and area of cross-section, A. Young modulus of the material of the wire is Y . If the mass is pulled down slightly its frequency of oscillation along the vertical direction is :
Official answer
(3)
$\displaystyle f=\frac{1}{2 \pi} \sqrt{\frac{\mathrm{YA}}{\mathrm{~mL}}}$
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JEE Main 2020 Physics question, with the answer from NTA’s final answer key. Where our answers come from.