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Question

Select the correct one from the statements given below:
(i) At any point in a static fluid, pressure acting on it will be same in all directions.
(ii) Forces acting on a fluid in equilibrium have to be parallel to the surface.

A
(i) only
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B
(ii) only
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C
Both (i) & (ii)
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D
None of these.
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Solution

The correct option is A (i) only

At any point in a static fluid, pressure will be the same in all directions because the point will be at rest.
P1=P1=P2=P3=P4=P5=P6
Hence, statement (i) is correct.
fluid cannot sustain shear stress, hence forces acting on the fluid in equilibrium have to be perpendicular to the free surface of the fluid.

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