Question

Which of the following options is incorrect?
1.transverse waves propagate inside a fluid
2.a wave transport both energy and momentum
3.only mechanical waves require an elastic medium for their propagation
4.longitudinal waves can propagate through any medium

Answer 1

Transverse plane wave in linear polarization, i.e. oscillating only in the y-direction.
The wave shown could occur on a water surface.
(Although strictly speaking water waves have a small longitudinal component as well.)

A light wave is an example of a transverse electromagnetic wave; the shape of the wave is one of the sinusoidal plane-wave solutions of the electromagnetic wave equation.

Propagation of a transverse spherical wave in a 2d grid (empirical model)

B transverse wave is a moving wave that consists of oscillations occurring perpendicular (right angled) to the direction of energy transfer (or the propagation of the wave).

If a transverse wave is moving in the positive x-direction, its oscillations are in up and down directions that lie in the y–z plane.

Light is an example of a transverse wave, while sound is a longitudinal wave. A ripple in a pond and a wave on a string are easily visualized as transverse waves.

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