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Physics - Wave on String Question with Solution | TestHub

PhysicsWave on StringEquation/graphEasy2 minPYQ_2021

PhysicsEasysingle choice

The equation of simple harmonic wave produced in the string under tension $0.4 N$ is given by $y = 4 sin (3 x + 60 t) m$ . The mass per unit length of the string is

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Solution:

The standard equation of a wave can be written as $y = A sin (kx + ω t)$ Speed of wave $V = \frac{ω}{k} = \frac{60}{3} = 20 m / s$ Also, $V = \frac{T}{m}$ $∴ m = \frac{T}{V ^{2}} = \frac{0.4}{400} = 1 0^{- 3} kg m^{- 1}$

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

⏱ 2mℹ️ Source: PYQ_2021

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