Question

A 10 cm air column is trapped inside the tube
(having uniform area of cross section) by 6 cm of
Hg and is placed horizontally to the plane.
Calculate the length of air column when the tube
is placed vertically with opened end up.
(1) 9.26 cm
(2) 10 cm
(3) 10.25 cm
(4) 11.5 cm​

Answer 1

Answer:

We know that the pressure of the liquid inside a column will be given by the formulae P =Po + h*d*g where h is the height of the liquid column and d is the density of the liquid.

So we know that for same column of liquid n1=n2 so P1V1=P2V2 or P*(Area*L) so we  can also write that the rise in the length of the column will be L=76*10/(76+6) since in the given question it is said that the tube is open ended vertically placed.

So, on solving we will get the value of L=9.26cm.

Answer 2

Answer:

answer is in the attachment

Explanation: