An object is immersed in a liquid at a depth h h\,h beneath the surface. The pressure at this depth due to the liquid is ppp. The gravitational field strength is ggg. Which of the following is the correct equation for the density ρ \rho\,ρ of the liquid?
ρ=phg\rho = p h gρ=phg
ρ=phg\rho = \frac{p}{h g}ρ=hgp
ρ=hgp\rho = \frac{h g}{p}ρ=phg
ρ=pgh\rho = \frac{p g}{h}ρ=hpg
188 exam-style questions on CIE IGCSE Physics Pressure, covering Pressure. Each one has a worked solution and a mark scheme showing where the marks go.