Question

Waves move fastest in

Answer 1

Option (d) is the correct answer.

Step-by-step explanation:

At high temperature, there will be more collision between the molecules as a result more energy will generate. Thus, a wave can move quickly.

In case of solids, the particles are held more closely with each other. Therefore, when temperature is high then solid particles being closer can pass on the energy more quickly as compared to gases.

Thus, we can conclude that waves move fastest in high-temperature solids.

Answer 2

Liquids are not packed as tightly as solids. And gases are very loosely packed. The spacing of the molecules enables sound to travel much faster through a solid than a gas. Sound travels about four times faster and farther in water than it does in air.