Regarding speed of sound in gas match the following
| $(A)$ Temperature of gas is made $4$ times and pressure $2$ times | $(P)$ speed becomes $2\sqrt 2$ times |
| $(B)$ Only pressure is made $4$ times without change in temperature | $(Q)$ speed become $2$ times |
| $(C)$ Only temperature is changed to $4$ times | $(R)$ speed remains unchanged |
| $(D)$ Molecular mass of the gas is made $4$ times | $(S)$ speed remains half |
Medium
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${V_{sound}} = \sqrt {\frac{{\gamma P}}{\rho }} = \sqrt {\frac{{\gamma RT}}{{{M_W}}}} $
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