Question

A 20 cm long capillary tube is dipped in water. The water rises upto 8 cm. If the entire arrangement is put in a
freely falling elevator, the length of water column in the capillary tube will be
(A) 8 cm
(B) 10 cm
(C) 4 cm
(D) 20 cm​

Answer 1

Answer:

hey..... mate ur ans.... here

ans... is (d)

Explanation:

Hence, when the elevator accelerates up or down, the water filled in the capillary is weightless. Therefore the water rise and reach the top of the tube. So, the height of the water in capillary will be same as the height of capillary tube. Therefore the length of the water column in the capillary tube is 20cm.....

plzz mark as brainlist