If you dive to a depth of 10m below the surface of a lake,

Question

Part A
what is the pressure due to the water alone?
What is the absolute pressure at that depth?

Answer 1

the water pond to be 2.7m deep. if the refractive index of water is 4/3,find the actual depth of the pond.

Answer 2

I don't know the ans

Answer 3

Pressure alone due to water would be10^5. And total pressure would be 2×10^5.