A triangular lamina of area A and height h is immersed in a liquid of density ρ in a vertical plane with its base on the surface of liquid. The thrust on the lamina is

Q: A triangular lamina of area A and height h is immersed in a liquid of density ρ in a vertical plane with its base on the surface of liquid. The thrust on the lamina is

(a) $\frac{1}{2} A \rho g h $

(b) 1$\frac{1}{3} A \rho g h $

(c) $\frac{1}{6} A \rho g h $

(d) $\frac{2}{3} A \rho g h $

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Ans: (b)