Water rises in a capillary tube to a height `h`. It will rise to a height more than `h`

Options

A. on the surface of sun
B. in a lift moving down with an acceleration
C. at the poles
D. in a lift moving up with an acceleration

Answer

B

Explanation

Water will rise to a height more than `h` when downward force `(mg_(eff))` becomes lesser than `mg`.
so in a left accelarating downwards, `g_(eff)` is `(g - a_(0))`. Hence capillary rise is more.
On the poles `g_(eff)` is even more than `g`. Hence the capillary will even drop.