In which medium, the speed of sound is maximum?

Correct answer: (b) Steel

Explanation

Speed of sound is governed by v = √(E/ρ), rising with the medium's elasticity.

Sound travels fastest in solids, slower in liquids, and slowest in gases.

Steel (~5000 m/s) far exceeds water (~1500), hydrogen (~1284) and air (~343 m/s).