Answer:
Explanation:
You need to consider the index of refraction.
index of refraction of air: 1.00
index of refraction of water: 1.33
Index of refraction of steel: 2.75681
If the sound wave passed from air into water, it passes from a lower index to a higher index of refraction.
As the wave travels into the more dense medium (higher n), it slows down. Therefore from air to water (lower to higher) it slows down, and from water to steel (n of steel is higher that n of water) therefore it slows down even more.
