<Tr> <Td> </Td> <Td> This article relies largely or entirely on a single source . Relevant discussion may be found on the talk page . Please help improve this article by introducing citations to additional sources . (April 2013) </Td> </Tr> <P> A 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). </P> <P> 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 . </P> <P> 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 . </P>

What is meant by transverse nature of em waves