Question

The pressure wave, P = 0.01 sin[1000t – 3x]NM⁻², corresponds to the sound produced by a vibrating blade on a day when atmospheric temperature is 0º C . On some other day when temperature is T, the speed of sound produced by the same blade and at the same frequency is found to be 336 ms⁻¹. Approximate value of T is:
(A) 12ºC (B) 11ºC
(C) 15º C (D) 4º C

Answer 1

The answer is (B) 11ºC

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