Question

State if pressure at a point in a liquid is a vector or a scalar quantity.

Answer 1

1. The pressure exerted by a liquid at any depth h below the surface of the liquid is $h\rho g$.
2. It does not depend on any parameter other than the depth h.
3. Hence, it is the same at all the points lying on a horizontal line.
4. Since it acts in all directions, it is a scalar quantity.