Question

sound travels very fast in(. )


a)air
b)water
c)wood
d)iron
​

Answer 1

Answer:

ironn.....

Explanation:

Sound travels fastest through solids. This is because molecules in a solid medium are much closer together than those in a liquid or gas, allowing sound waves to travel more quickly through it. In fact, sound waves travel over 17 times faster through steel than through air.

Answer 2

d) Iron

Sound is a mechanical wave, i.e., it requires a medium to travel. Also, the more the density of a substance, the more it's speed. Here,

Density of air = 1.225 kg/m³

Density of water = 1000 kg/m³

Wood = 800 kg/m³

Iron = 7860 kg/m³

∴ It will travel fast in iron.