Discussion

Match List-I with List-II :

Choose the correct option.

Answer: C

The correct matching is (a)-(ii), (b)-(iii), (c)-(i).

P waves (primary waves) are longitudinal waves: they push and pull the rock in the direction the wave travels, are the fastest, and pass through solids, liquids and gases.
L waves are surface waves. They travel along the earth's surface, arrive last and cause most of the damage in an earthquake.
S waves (secondary waves) are transverse waves: they move the rock at right angles to their direction of travel, and cannot pass through liquids.

Every other option swaps two of these, for example calling the P wave transverse.

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