NEET UG PHYSICS MCQ: WAVES

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A standing wave is formed by the superposition of two waves travelling in opposite directions. The transverse displacement is given by

y\left( {x,t} \right) = 0.5\sin \left( {\frac{{5\pi }}{4}x} \right)\cos \left( {200\pi t} \right)

. What is the speed of the travelling wave moving in the positive x direction?

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Correct option: A

160 m/s

Option A (160 m/s) is correct because the speed of the traveling wave is calculated as the ratio of the angular frequency to the wave number, which are extracted from the given standing wave equation.

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