Which of the following statements are not correct? <br> 1. The pressure is different at different points inside the liquid lying at the same depth in a horizontal plane <br> 2. Pressure exerted by a liquid is independent of the shape of the containing vessel<br> 3. Density is mass per unit area of the substance <br> 4. Relative density of a substance is defined as the ratio of its density to the density of water

Question

$\begin{array}{1 1} (a)\; \text{1 and 2} \\ (b)\;\text{2 and 3} \\ (c)\; \text{1 and 3 } \\ (d)\; \text{3 and 4} \end{array}$