JAMB Physics 2022 Paper

Concept:Boyle’s law states that for a fixed mass of gas at constant temperature, pressure is inversely proportional to volume.Explanation:Mathematically, $P \propto \frac{1}{V}$.This means $P = k \times \frac{1}{V}$, where $k$ is a constant.When plotting $P$ against $\frac{1}{V}$, the relationship is linear.The equation is of the form $y = mx$, with $y = P$, $x = \frac{1}{V}$, and slope $m = k$.A graph of $y = mx$ is a straight line passing through the origin.Therefore, the graph of pressure against the reciprocal of volume is a straight line.Answer:D. straight line