A sound wave has frequency 2 Hz and wave length 40 cm how long it take to travel 1.6 km
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f= 2hz
lambda / wavelength= 40cm i.e. 0.4 m
v=?
v= f × lambda
= 2 × 0.4
= 2 × 4/10
= 4/5 or 0.8 m/s
s = 1.6 km i.e. 1600m
t = s/v
= 1600 × 5 / 4
= 2000 secs
HOPE THIS HELPS IF YOU LIKE THE ANS THEN PLS MARK IT AS BRAINLIEST PLS PLS IT'S URGENT
lambda / wavelength= 40cm i.e. 0.4 m
v=?
v= f × lambda
= 2 × 0.4
= 2 × 4/10
= 4/5 or 0.8 m/s
s = 1.6 km i.e. 1600m
t = s/v
= 1600 × 5 / 4
= 2000 secs
HOPE THIS HELPS IF YOU LIKE THE ANS THEN PLS MARK IT AS BRAINLIEST PLS PLS IT'S URGENT
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