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Physics - Wave on String Question with Solution | TestHub

PhysicsWave on StringEquation/graphMedium2 minPYQ_2020

PhysicsMediumsingle choice

The extension in a wire obeying Hooke's law is 'x'. The speed of sound in the stretched wire is 'V'. If the extension in the wire is increased to $4 x$ , then the speed of sound in a wire is

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Solution:

$V ∴ \frac{V _{1}}{V _{2}} ∴ V_{2} = \frac{T}{m} T_{1} = - kx T_{2} = - k 4 x = \frac{T _{1}}{T _{2}} = \frac{1}{2} = 2 V_{1}$

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

⏱ 2mℹ️ Source: PYQ_2020

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