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Physics - Wave on String Question with Solution | TestHub

PhysicsWave on StringMiscellaneousEasy2 minPYQ_2021

PhysicsEasysingle choice

The length and diameter of a metal wire used in sonometer is doubled. The fundamental frequency will change from ' $n$ ' to

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Answer:

Solution:

The fundamental frequency is given by $n = \frac{1}{2 Cr} \frac{T}{π ρ}$ $∴ n \propto \frac{1}{ℓ _{r}} ∴ \frac{n _{2}}{n _{1}} = \frac{ℓ _{1} r _{1}}{ℓ _{2} r _{2}} = \frac{1}{2} \times \frac{1}{2} = \frac{1}{4}$ $∴ n_{2} = \frac{n _{1}}{4} = \frac{n}{4}$

Stream:MHT_CETSubject:PhysicsTopic:Wave on StringSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2021

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