ECHO

SOUND BOUNCES BACK


prostudypk.com
Bouncing Back from a Cliff HELLO!…hello! d = ? t = time to go and come back340 m/sspeed of sounddistance to the cliff
1. Formulad = v × t ÷ 2÷2 because the sound goes and comes back
2. ShartFor an echo the cliff must be at least 17 m away(the brain separates sounds 0.1 s apart)
3. UsesSONAR: depth of the seaBats: finding the way in the dark
MATRIC PHYSICS · SOUND · PUNJAB BOARDS
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