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Question

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

( Accelaration due to gravity = 10m/s2)



A

512000 Pa

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B

51200 Pa

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C

5120 Pa

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D

None of these

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Solution

The correct option is A

512000 Pa


The expression of pressure at the bottom of a liquid of height ‘h’ and density ‘d’ is given by dgh.
The given values are:
d=1024kg/m3, h=50m and  g=10m/s2  
Thus, pressure=dgh=1024 × 50 ×10=512000Pa.


Physics

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