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Physics - Wave on String Question with Solution | TestHub

PhysicsWave on StringEquation/graphHard2 minPYQ_2021

PhysicsHardsingle choice

A sound wave of frequency $160 Hz$ has velocity of $320 m / s$ . when it travels through air, the particles having a phase difference of $9 0^{\circ}$ , are separated by a distance of

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Solution:

$f = 160 Hz, v = 320 m / s λ = \frac{v}{f} = \frac{320}{160} = 2 m = 200 cm$ Phase difference $ϕ = \frac{2 π x}{λ}$ $∴ x = \frac{ϕ λ}{2 π} = \frac{π}{2} \cdot \frac{λ}{2 π} [∵ ϕ = \frac{π}{2}] = \frac{λ}{4} = \frac{200}{4} = 50 cm$

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

⏱ 2mℹ️ Source: PYQ_2021

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