Sound waves are not transmitted over long dis | vedclass

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Question

(A) Sound waves are mechanical waves that require a material medium for propagation. As they travel through the atmosphere,their energy is dissipated

Vedclass · Accepted Answer

they are absorbed by the atmosphere

Vedclass · Answer

(A) Sound waves are mechanical waves that require a material medium for propagation. As they travel through the atmosphere,their energy is dissipated due to several factors: $1$. Geometric spreading: The intensity of the wave decreases as it spreads out over a larger area. $2$. Atmospheric absorption: Acoustic energy is absorbed by the atmosphere through molecular relaxation and viscosity effects. $3$. Surface effects: Interaction with the ground and obstacles causes scattering and absorption. Because of these energy losses,the intensity of sound waves decreases rapidly with distance,making long-distance transmission ineffective compared to electromagnetic waves. While atmospheric absorption is often negligible for short distances,it becomes significant over long distances.

Sound waves are not transmitted over long distances because:

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