A glass tube open at both ends is immersed vertically in mercuryin such a way that 13 cm length of the tube remains above the mercury surface. Now closing the upper end of the tube,it is raised through a further 35 cm. Determine the length of the air column above mercury in the closed tube. Atmospheric pressure =76 cmHg.

A glass tube open at both ends is immersed vertically in mercuryin suc

1.	A glass tube open at both ends is immersed vertically in mercuryin such a way that 13 cm length of the tube remains above the mercury surface. Now closing the upper end of the tube,it is raised through a further 35 cm. Determine the length of the air column above mercury in the closed tube. Atmospheric pressure =76 cmHg.
Answer» ANSWER :20.41 CM