The pressure wave \(P=0.01 \sin (1000 t-3 x) ~\text{Nm}^{-2},\) corresponds to the sound produced by a vibrating blade on a day when the atmospheric temperature is $\mathrm{}$\(0^\circ \text{C}.\) On some other day, when the temperature is \(T,\) the speed of sound produced by the same blade and at the same frequency is found to be \(336~\text{m} \text{s}^{-1}.\) The approximate value of \(T\) is:
1. \( 4^{\circ} \text{C} \)
2. \(12^{\circ} \text{C} \)
3. \(11^{\circ} \text{C} \)
4. \(15^{\circ} \text{C} \)