Which of the following waves is called compression-dilation waves or longitudinal waves?

Answer: [A] Primary waves

Primary wave is also called compression-dilation or longitudinal waves. Secondary wave is called transversal wave. Love wave and Rayleigh wave are surface waves. P waves can pass through solid, liquid and gases and are also the fastest among the three main types of waves.

This question is a part of GKToday's Integrated IAS General Studies Module