Page No. Date.:a cineaof sound striked by živer bedbetween aeroplane and filee bed4.А A sound signal issimultaneously sent in air and water from a boat on a river .The echo of sound striked by river bed isheard in 4 s, while echo strickedby aeroplace is heard in 85. Find thedistance[Velocity of sound in aie. 350 m/s ,velocity of sound in water =1500m/s

Page No. Date.:a cineaof sound striked by živer bedbetween aeroplan

1.	Page No. Date.:a cineaof sound striked by živer bedbetween aeroplane and filee bed4.А A sound signal issimultaneously sent in air and water from a boat on a river .The echo of sound striked by river bed isheard in 4 s, while echo strickedby aeroplace is heard in 85. Find thedistance[Velocity of sound in aie. 350 m/s ,velocity of sound in water =1500m/s
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