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MHT CET202020 Oct 2020Evening ShiftPhysicsMechanical Properties of FluidsActual

What would be the absolute pressure at depth 1 ~km below the ocean? [Given : density of water =10³ ~kg / m ³, ~g =10 ~m / s ², 1 atmospheric pressure = .1 01 10⁵ ~N / m ² ]

Options

  1. A10 101 10⁷ ~N / m ²
  2. B10 101 10⁷ dyne / cm ²
  3. C10 101 10⁶ dyne / cm ²
  4. D10 101 10⁶ ~N / m ²

Correct answer

D. 10 101 10⁶ ~N / m ²

Step-by-step solution

Given: h =1000 ~m , ~d =1.03 10³ ~kg / m ³, ~g =10 ~m / s ² The absolute pressure is given by: absolute pressure = pressure of water + atmospheric pressure P = ~hdg +1 ~atm =1000 1.03 10³ 10+1 ~atm =1.03 10⁷ ~Pa +1 ~atm P=103 ~atm +1 ~atm =104 ~atm

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