!: (a) 20 cm: 80
10. Some mercury is poured into a capillary tube of
uniform bore and one end closed. When the tube
is held horizontally, mercury column has a length
of 4 cm and air enclosed in the closed end has a
length of 10 cm. If the tube is now held vertically,
with open end upwards, the length of the air
column will be (take atmospheric pressure at the
Tale place of experiment to be 760 mm)
(a) 10.5 cm . (6) 8.5 cm ",JI
(c) 9.0 cm mati (d) 9.5 cm 0