An open tank containing liquid is made to move from rest with a uniform acceleration. The angle 0 which the free surface of liquid makes with the horizontal is such that (where a = Horizontal acceleration of the tank, and g = Acceleration due to gravity)

A. tanθ = a/g

B. tanθ = 2 a/g

C. tanθ = a/2g

D. tanθ = a2/2g

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