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AMU Engineering 2020 solved paper Solved Paper
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© examsnet.com
Question : 2
Total: 150
The pressure applied from all directions on a cube is
p
. How much its temperature should be raised to maintain the original volume? The volume elasticity of the cube is
β
and the coefficient of volume expansion is
α
.
p
α
β
p
α
β
p
β
α
α
β
p
Validate
Solution:
If coefficient of volume expansion is
α
and rise in temperature is
∆
θ
, then
∆
V
=
V
α
∆
θ
⇒
∆
V
V
=
α
∆
θ
∴
Volume elasticity,
β
=
p
∆
V
∕
V
=
p
α
∆
θ
⇒
∆
θ
=
p
α
β
© examsnet.com
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