Which of the following statements about a fluid at rest in a cup is/are correct?
1. Pressure is same at all the points in the fluid.
2. Pressureis exerted on the walls.
3. Pressure exists everywhere in the fluid.
Select the correct answer using the code given below:

Options

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

Answer

D

Explanation

Fluid statics or hydrostatics is the branch of fluid mechanics that studies "fluids at rest and the pressure in a fluid or exerted by a fluid on an immersed body''. It encompasses the study of the conditions under which fluids are at rest in stable equilibrium as opposed to fluid dynamics, the study of fluids in motion.