1.

बल संवर्धनासाठी कल जास्तीत जास्त प्रयलले पाहिजे वरील मताशी तुम्ही सहमत आहात किनाही​

Answer»

A medium of GAS normal to sound contains NEUTRAL atoms and molecules which conduct the transmission of sound waves through the gas. Sound waves which PROPAGATE in a gas CONTAIN lighter molecules, and fewer of them per volume, than in LIQUIDS or solids.



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