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Physics - SHM Question with Solution | TestHub

PhysicsSHMMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

If two wires of same length $l$ and area of the cross-section $A$ with Young modulus $Y$ and $2 Y$ connect in series and one end is fixed on roof and another end with mass $m$ make simple harmonic motion, then the time period is

Options:

Answer:

Solution:

The force constant of wires are

$k_{1} = \frac{Y A}{l}, k_{2} = \frac{2 Y A}{l}$

In series $k = \frac{k_{1} k_{2}}{k_{1} + k_{2}} = \frac{2}{3} (\frac{Y A}{l})$

$T = 2 π \sqrt{\frac{3 m l}{2 Y A}}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:SHMSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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