14. A vessel of area of cross-section A has liquid to a height H. There is a hole at the bottom of vessel having area of cross-section a.

The time taken to decrease the level from H₁ to H₂ will be

(a)   (A/a)(2/g)[√H₁– √H₂]                   (b) √2gh

(c) √2gh( H₁– H₂)                                   (d) (A/a)(g/2)[√H₁– √H₂]

Answer-a

(28)