A liquid stands at the plane level in the U-tube when at rest. If areas of cross-section of both the limbs are equal, what will be the difference in height h of the two limbs of U-tube, when the system is given an acceleration a in horizontal direction towards right as shown?

Options

A. `(Lg)/(a)`
B. `(La)/(g)`
C. `(Lg^(2))/(a^(2))`
D. zero

Answer

B

Explanation

`rhogh=rhoaL`
`:.h=(aL)/(g)` .