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Question

Calculate the pressure at a depth of 50 m below the surface of the sea. The density of sea water is 1024 kg/m3.


  1. 512000 Pa

  2. 51200 Pa

  3. 5120 Pa

  4. 1 atm


Solution

The correct option is A

512000 Pa


The expression of pressure at a depth of ‘h’ inside a liquid with density ρ is given by ρgh.
The given values are: ρ=1024 kg/m3, h=50 m and g=10 m/s2
Thus, pressure =ρgh=1024×50×10=512000 Pa

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