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Q25 (NDA-II/2016) Science & Technology › Basic Science (Physics, Chemistry, Biology) › Waves and acoustics Answer Verified

When sound waves are propagated through a medium, the physical quantity/ quantities transmitted is/are

Result
Your answer: —  Â·  Correct: B
Explanation

Sound waves are mechanical waves that propagate through a medium via the periodic compression and rarefaction of particles [1]. While the particles of the medium oscillate back and forth or up and down, they do not undergo net displacement to a new location; thus, there is no net transfer of matter. Instead, waves serve as an energy transport phenomenon, moving energy from the source to the receiver through particle interactions. Although advanced physics acknowledges that mechanical waves also carry momentum, standard scientific frameworks and the provided context emphasize that waves transport energy without transporting material. In the context of general physical quantities transmitted during propagation, energy is the primary quantity consistently identified as being transferred across the medium without the movement of mass.

Sources

  1. [1] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 5: Earths Magnetic Field (Geomagnetic Field) > Why Do Sound Waves Travel Faster In A Denser Medium Whereas Light Travels Slower? > p. 64
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