A progressive sound wave of frequency 500 Hz is travelling through air with speed 350 m/s. A compression maxima appears at a place at a given instant. The minimum time interval after which the rerefaction maxima occurs at the same point is :

A progressive sound wave of frequency 500 Hz is travelling through air

1.	A progressive sound wave of frequency 500 Hz is travelling through air with speed 350 m/s. A compression maxima appears at a place at a given instant. The minimum time interval after which the rerefaction maxima occurs at the same point is :
Answer» 250 s `(1)/(250)` s `(1)/(500) ` s `(1)/(1000)` s . Solution :V = 500 Hz, u = 350 m/s T = `(1)/(v) = (1)/(500) ` T = SEC. TIME interval between compression and rare faction is t = `(T)/(2)`. `therefore t = (1)/(2 XX 500) = (1)/(1000)` sec. Hence the correct choice is (d).

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A progressive sound wave of frequency 500 Hz is travelling through air with speed 350 m/s. A compression maxima appears at a place at a given instant. The minimum time interval after which the rerefaction maxima occurs at the same point is :

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