A student plotted the following four graphs representing the variation of velocity of sound in a gas with the pressure $P$. Which one is correct
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The speed of sound in a gas does not depend upon pressure of the gas, till temperature
remains constant i.e., speed remains the same whatever be the pressure Therefore, graph $(D)$ is correct.
remains constant i.e., speed remains the same whatever be the pressure Therefore, graph $(D)$ is correct.
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