Question

a dolphin emits a pulse af sound waves (longitudinal wave) toward an object at 300 m of from the dolphin how long after the dolphin emits a wave is its reflection if the bulk modulus and the density of seawater are given by b=2×10^9n/m,p=1.025×10^3 kg/m​

Answer 1

Answer:

total distance travelled by sound , d=150+150=300m ,

given speed of sound in sea water , v=1530m/s ,

therefore , time after which dolphin hears an echo ,

t=d/v=300/1530=0.196=0.20s

Answer 2

Answer:

l o v e with d i k s h a at first sight