Ask Question
12 February, 10:52

You can hear the sound of an approaching train long before you see it by placing your ear on metal track

+1
Answers (1)
  1. 12 February, 14:07
    0
    Yes,

    It is because the speed of sound in solids is very higher than speed of sound in gasses (air). As the molecules present in the solids are very close to each other and transfer disturbance easily and quickly to other molecules. In gasses molecules are farther apart and require more time to travel. Hence speed of sound in gasses are lower than in solids.

    Second reason '

    AS velocity = V = square root [ elastic modulus / density ]

    Gasses are more compressible and hence have smaller elastic modulus so have lower speed.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “You can hear the sound of an approaching train long before you see it by placing your ear on metal track ...” in 📘 Physics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers