NEET Physics Waves Questions Solved

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The ratio of densities of nitrogen and oxygen is 14:16. The temperature at which the speed of sound in nitrogen will be same at that in oxygen at 55°C is 

(1) 35°C

(2) 48°C

(3) 65°C

(4) 14°C

(4) v=γRTMTNT0=MNM0TN273+55=1416=78

TN=287K=14°C

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