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 …

Sound waves travel at 350 m/s through a warm air and at 3500 m/s throu

1.	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 …
Answer» decreases by a factor 10 increases by a factor 20 increases byfactor 10 decreases by a factor 20 Solution :We have `V = f LAMDA implies v prop lamda ( because f =` constant) `therefore (v _(1))/( v _(2)) = (lamda _(1))/( lamda_(2)) implies (350 )/( 3500) =(lamda_(1))/( lamda_(2)) implies lamda_(2) = 10 lamda_(1)` `therefore` Wavelength becomes 10 times its initial VALUE.