The temperature at which the speed of sound in air will be double t...

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The temperature at which the speed of sound in air will be double that at \( 27^{\circ} \mathrm{C} \) is
\( \mathrm{P} \)
(1) \( 819^{\circ} \mathrm{C} \)
(2) \( 927^{\circ} \mathrm{C} \)
W
(3) \( 6127^{\circ} \mathrm{C} \)
(4) \( 4095^{\circ} \mathrm{C} \)
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