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Physics - Wave on String Question with Solution | TestHub

PhysicsWave on StringEquation/graphMedium2 minPYQ_2020

PhysicsMediumsingle choice

A transverse wave travels on a taut steel wire with a velocity of $v$ when tension in it is $2.06 \times 10^{4} N .$ When the tension is changed to $T,$ the velocity changed to $\frac{v}{2} .$ The value of $T$ is close to:

Options:

Answer:

B

Solution:

$v \propto \sqrt{T}$
$\Rightarrow \frac{v_{1}}{v_{2}} = \sqrt{\frac{T_{1}}{T_{2}}} \Rightarrow \frac{v}{(\frac{v}{2})} = \sqrt{\frac{2.06 \times 10^{4}}{T}}$
$\Rightarrow T = \frac{2.06 \times 10^{4}}{4} N = 0.515 \times 10^{4} N$

Stream:JEESubject:PhysicsTopic:Wave on StringSubtopic:Equation/graph

⏱ 2mℹ️ Source: PYQ_2020

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