Question

find the ratio of the time taken by sound waves to reach the aircraft with respect to the taken by the waves to reach the submarine speed of sound of air =340m/s,speed of sound in seawater =1520m/s

Answer 1

Hey there !

According to this case, assuming the distance between the two points from an origin to be equal, we get the ratio as follows:

Speed of Sound in air = 340 m/s

Speed of Sound in water = 1520 m/s

Distance = Same distance which can be denoted as 'x'.

So Time taken for reaching aircraft = x / 340

Time taken for reaching submarine = x / 1520

So Ratio of air to water is :

( x / 340 ) ÷ ( x / 1520 )

x gets cancelled, we get,

1520 / 340

=> 152 / 34

=> 76 / 17

So the ratio of speeds of air to water is 76 : 17

Hope my answer helped !