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Physics - Wave on String Question with Solution | TestHub

PhysicsWave on StringWavesMedium2 minQB

PhysicsMediumsingle choice

A transverse wave described by equation $y = 0.02 sin (x + 30 t)$ (where $x$ and $t$ are in metres and seconds respectively) is travelling along a wire of area of cross-section 1 mm² and density 8000 kg/m³. What is the tension in the string?

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Answer:

Solution:

$v = ω / k = 30$ m/s. $μ = ρ A = 8000 \times 1 0^{- 6} = 8 \times 1 0^{- 3}$ kg/m. $T = μ v^{2} = 8 \times 1 0^{- 3} \times 900 = 7.2$ N.

Stream:JEESubject:PhysicsTopic:Wave on StringSubtopic:Waves

⏱ 2mℹ️ Source: QB

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