Question

If you place your ear close to an iron railing which is tapped some distance away, you hear the sound twice. Explain why

Answer 1

Answer:

This is because the sound of tapping comes to our ear through two mediums.

Explanation:

Two mediums are the solid i.e. the railing and the air around the railing. When you tap the railing the vibrations propogate through railing as well as the air. We hear the sound through the solid first because the speed of sound is higher in solids than in air, then we hear the sound through air second as waves take more time to propogate in air. In this way, we hear the sound twice. Thank you. If you feel good after reading this mark this as brailiest answer.

Answer 2

Answer:

Explanation:

The travelling of sound in the iron railing is heard first and then the travelling of sound in air is heard next, that’s why we able to hear it twice