An airplane produces a sound wave with frequency 5 khz and wavelength 30 m.in how much time would the sound wave cover the distance of 4 km ?
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f = 5 khz i.e. 5000hz
lambda or wavelength = 30m
v= f× lambda
v= 5000 × 30
= 150000 m/s
s ( distance) = 4km = 4000m
v= 150000m/s
we know that,
t = s/v
t= 4000/150000
= 0.02666.......... secs
= 0.266 ( approx)
HOPE THIS HELPS IF YOU LIKE THE ANS THEN PLS MARK IT AS BRAINLIEST IT'S URGENT
lambda or wavelength = 30m
v= f× lambda
v= 5000 × 30
= 150000 m/s
s ( distance) = 4km = 4000m
v= 150000m/s
we know that,
t = s/v
t= 4000/150000
= 0.02666.......... secs
= 0.266 ( approx)
HOPE THIS HELPS IF YOU LIKE THE ANS THEN PLS MARK IT AS BRAINLIEST IT'S URGENT
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