A beaker containing a liquid of density ...

A beaker containing a liquid of density `rho` moves up with an acceleration `a`. The pressure due to the liquid at a depth h below the free surface of the liquid is.

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Due to upward acceleration pseudo force will act downwards so value of acceleration due to gravity will increase by .a.
`therefore g.=(g+a)`
`P=rhog.h rArr P= rho (g+a)h" (substitute g.)"`

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