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Byju's Answer
Standard VIII
Physics
Law of Floatation
A body floats...
Question
A body floats in water with
40
%
of its volume outside water. When this body is kept in oil, it floats with
60
%
of its volume remains outside the oil. The relative density of oil is
K
2
. Find value of
K
.
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Solution
let
ρ
be density of water be
ρ
0
It submerged
60
%
o water and
40
%
in oil .
Let the body density be
ρ
.
ρ
v
g
=
ρ
0
v
×
0.6
×
g
→
(
1
)
ρ
v
g
=
ρ
o
i
l
v
×
0.4
×
g
→
(
2
)
Divide
(
2
)
by
(
1
)
ρ
o
i
l
ρ
0
×
4
6
=
1
k
2
=
3
2
k
=
3
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