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A triangular lamina of area A and height...

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

A

`1/2 Ap_gh`

B

`1/3 Apgh`

C

`1/6 Apgh`

D

`2/3 Apgh`

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