NEET Physics Waves Questions Solved

Sound waves travel at 350 m/s through a warm 

air and at 3500 m/s through brass. The wavelength

of a 700 Hz acoustic wave as it enters brass from 

warm air

(a) increases by factor 20

(b) increases by factor 10

(c) decreases by factor 20

(d) decreases by factor 10

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