Question

Sound waves A & B are travelling in two different media. Find which wave will be travelling faster, when
(i) A is travelling in water and B is travelling in CO₂.
(ii) A is travelling in CO₂ and B is travelling in hydrogen.
Also support your answers with reasons.

Answer 1

Answer:

i)If A is travelling in water and B is travelling in CO₂,

Then sound wave A will be traveling faster than wave B

Because sound travels faster in liquids than in gases

ii) If A is travelling in CO₂ and B is travelling in hydrogen,

Then sound wave B will be traveling faster than wave A

Because sound wave travels faster in a medium with lower density and hydrogen has lower density than CO₂

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Answer 2

Answer:

1. Water
2. Co2

Explanation:

• Water molecules are close to each other as they vibrates quickly thats why the sound waves will travel faster.
• The dencity of co2 is higher than hydrogen therefore co2 will travel more faster

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