The length of the cube increases by 0.1% , what is the bulk strain ?
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& that will be Krishna.... Hi Krishna
Length of Lube
=
L
Δ
L
L
=
0.001
,
V
=
L
3
New Volume
=
(
L
+
Δ
L
)
3
=
L
3
(
1
+
Δ
L
L
)
3
=
L
3
(
1
+
3
Δ
L
L
+
Δ
L
3
L
+
3
Δ
L
2
L
2
)
V
′
=
L
3
(
1
+
0.003
)
[The terms of Power 2 or more are neglected]
Bulk strain
=
V
′
−
V
V
=
0.003
=
L
Δ
L
L
=
0.001
,
V
=
L
3
New Volume
=
(
L
+
Δ
L
)
3
=
L
3
(
1
+
Δ
L
L
)
3
=
L
3
(
1
+
3
Δ
L
L
+
Δ
L
3
L
+
3
Δ
L
2
L
2
)
V
′
=
L
3
(
1
+
0.003
)
[The terms of Power 2 or more are neglected]
Bulk strain
=
V
′
−
V
V
=
0.003
Answered by
1
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