An indian submarine is moving in the Arabian sea with constant velocity. To detect enemy it sends out sonar waves which travel with velocity `1050(m)/(s)` in water. Initially the waves are getting reflected from a fixed island and the reflected waves are coming back to submarine. The frequency of reflected waves are detected by the submarine and found to be `10%` greater than the sent waves.
Now an enemy ship comes in front, due to which the frequency of reflected waves detected by submarine becomes `21%` greater than the sent waves.
Q. Bulk modulus of sea water should be approximately `(rho=_(water)=1000(kg)/(m^3)`)
A. `10^8(N)/(m^2)`
B. `10^9(N)/(m^2)`
C. `10^10(N)/(m^2)`
D. `10^(11)(N)/(m^2)`
