Physics - Wave on String Question with Solution | TestHub

PhysicsWave on StringMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

A segment of wire vibrates with a fundamental frequency of $450 Hz$ under a tension of $9 kg - wt$ . Then tension at which the fundamental frequency of the same wire becomes $900 Hz$ is

Options:

Answer:

Solution:

Fundamental frequency of wire

$f = \frac{1}{2 π} \sqrt{\frac{T}{m}}$

Or

$f \propto \sqrt{T}$

Or

$\frac{f_{2}}{f_{1}} = \sqrt{\frac{T_{2}}{T_{1}}}$

Or

$\frac{900}{450} = \sqrt{\frac{T_{2}}{9}}$

Or

$T_{2} = 4 \times 9 = 36 kg - wt$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Wave on StringSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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