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Byju's Answer
Standard XII
Physics
Advantages of Using Dielectrics in Capacitors
Volume of par...
Question
Volume of parallelepiped with co terminus edge as
→
a
,
→
b
,
→
c
is
A
[
→
a
→
b
→
c
]
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B
→
a
.
(
→
b
×
→
c
)
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C
→
a
.
(
→
b
.
→
c
)
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D
→
a
×
(
→
b
×
→
c
)
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Solution
The correct options are
A
[
→
a
→
b
→
c
]
B
→
a
.
(
→
b
×
→
c
)
The volume of parallelopiped
=
area of base
×
height
SO
v
o
l
u
m
e
=
∣
∣
→
a
×
→
b
∣
∣
|
→
c
|
cos
ϕ
v
o
l
u
m
e
=
(
→
a
×
→
b
)
⋅
→
c
v
o
l
u
m
e
=
[
→
a
→
b
→
c
]
Hence option A is correct
v
o
l
u
m
e
=
→
a
⋅
(
→
b
×
→
c
)
Hence option B is correct
Suggest Corrections
0
Similar questions
Q.
If
[
→
a
→
b
→
c
]
=
2
, then
→
a
.
(
→
b
×
→
c
)
(
→
c
×
→
a
)
.
→
b
+
→
b
.
(
→
c
×
→
a
)
(
→
a
×
→
b
)
.
→
c
+
→
c
.
(
→
a
×
→
b
)
(
→
b
×
→
c
)
.
→
a
=
Q.
If
V
is the volume of parallelepiped formed by the vectors
→
a
,
→
b
,
→
c
as three coterminous edges is
27
cubic units, then the volume of the parallelepiped having
→
α
=
→
a
+
→
2
b
−
→
c
,
→
β
=
→
a
−
→
b
and
→
γ
=
→
a
−
→
b
−
→
c
as three coterminous edges is
Q.
If
[
→
a
→
b
→
c
]
=
1
, then
→
a
.
→
b
×
→
c
→
c
×
→
a
.
→
b
+
→
b
.
→
c
×
→
a
→
a
×
→
b
.
→
c
+
→
c
.
→
a
×
→
b
→
b
×
→
c
.
→
a
is equal to
Q.
If
→
a
×
(
→
a
×
→
b
)
=
→
b
×
(
→
b
×
→
c
)
and
(
→
a
.
→
b
)
≠
0
, then
[
→
a
→
b
→
c
]
=
Q.
If
→
a
,
→
b
,
→
c
are three non coplanar vectors represented by concurrent edges of a parallelepiped of volume
4
then
(
→
a
+
→
b
)
.
(
→
b
×
→
c
)
+
(
→
b
+
→
c
)
.
(
→
c
×
→
a
)
+
(
→
c
+
→
a
)
.
(
→
a
×
→
b
)
is equal to
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