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A vessel contains a liquid has a consta...

A vessel contains a liquid has a constant acceleration `19.6m//s^(2)` in horizontal direction. The free surface of water get sloped with horizontal at angle

A

`tan^(-1) [1/2]`

B

`sin^(-1)[1/sqrt3]`

C

`tan^(-1) [2]`

D

`sin^(-1)[2/sqrt5]`

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