Physics - Wave on String Question with Solution | TestHub

PhysicsWave on StringEquation/graphEasy2 minPYQ_2020

PhysicsEasysingle choice

A sinusoidal wave with amplitude y is travelling with speed $v$ on a string with linear density $ρ$ . The angular frequency of the wave is $ω$ . The following conclusions are drawn. Mark the one which is correct. (in particular option, if we are changing one quantity, assume others are kept constant)

Options:

Answer:

Solution:

$P_{ar} = \frac{1}{2} μ v ω^{2} A^{2}$

So $P \propto v$

$\propto ω^{2}$

$\propto A^{2}$

So if frequency or amplitude is doubled power will be quadrupled, but if velocity is doubled power will also be doubled.

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

⏱ 2mℹ️ Source: PYQ_2020

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