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Byju's Answer
Standard IX
Physics
Capillary Action
The rise of a...
Question
The rise of a liquid in a capillary tube depends on
(a) the material
(b) the length
(c) the outer radius
(d) the inner radius of the tube
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Solution
Correct option: (a), (b), (d)
Height
of
the
liquid
in
the
capillary
tube
is
given
by
:
h
=
2
Scosθ
rρg
h
=
Height
S
=
Surface
tension
r
=
Inner
radius
of
the
tube
ρ
=
Density
of
the
liquid
g
=
Acceleration
due
to
gravity
a
)
θ
and
ρ
depend
upon
the
material
of
the
capillary
tube
and
the
liquid
.
b
)
h
is
dependent
on
the
length
of
the
tube
.
If
the
length
is
insufficient
,
then
h
will
be
low
.
d
)
r
is
the
inner
radius
of
the
tube
.
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