An object is 11 km below sea level. A research vessel series down a sonar signal to confirm this depth.After how long can it expect to get the echo? (Speed of sound in sea water as 1540 m/s)
it is taken as 1600 m/s
s = 2d/t since sonar has to hit surface and bounce back.
1540/11=ur answer
s = 2d/t since sonar has to hit surface and bounce back.
1540/11=ur answer