Physics · Oct / Nov 2020 · Paper 11 · Question 30

Which description of a sound wave is correct?

Aa longitudinal electromagnetic wave
Ba transverse electromagnetic wave
Can oscillation of particles parallel to the direction of travel of the wave energy
Dan oscillation of particles perpendicular to the direction of travel of the wave energy

As printed in the paper

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Correct answer: C. an oscillation of particles parallel to the direction of travel of the wave energy

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