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For a perfect gas, if we half the density, keeping the temperature same the speed of sound changes. This is due to the change in pressure.

For a perfect gas, if we half the density, keeping the temperature same the speed of sound changes. This is due to the change in pressure. Correct Answer False

The given statement is false. For a perfect gas, the speed of sound is a pressure of temperature only. And hence, by changing pressure or density but keeping the temperature same, speed of sound will not change.

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