Deepak Scored 45->99%ile with Bounce Back Crack Course. You can do it too!

# An open glass tube is immersed

Question:

An open glass tube is immersed in mercury in such a way that a length of $8 \mathrm{~cm}$ extends above the mercury level. The open of the tube is then closed and sealed and the tube is raised vertically up by addition $46 \mathrm{~cm}$. What will be length of the air column above mercury in the tube now ?

(Atmospheric pressure $=76 \mathrm{~cm}$ of $\mathrm{Hg}$ )

1. $38 \mathrm{~cm}$

2. $6 \mathrm{~cm}$

3. $16 \mathrm{~cm}$

4. $22 \mathrm{~cm}$

Correct Option: , 3

Solution: