Question

Consider the following statements.
An external pressure $p_o$ is applied to the surface of liquid in a container. Then,
1. The pressure on all side walls increase by $p_o$.
2. The pressure on the bottom was increased by $p_o$.
3. The pressure at all points inside the liquid increases by $p_o$.
Which of the statement(s) given above is/are correct?

• A. 1, 2 and 3
• B. 1 and 2
• C. 1 and 3
• D. 2 and 3

Answer 1

The correct option is C 1 and 3

As pressure is a scalar quantity and is same in all the directions, if external pressure $p_o$ is applied on the free surface of fluid in the container, it adds upto all the points inside the container.

So statements 1 and 3 are correct.