3
You visited us
3
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard XII
Physics
Unit Vectors
Find the unit...
Question
Find the unit vectors along
→
A
and
→
B
where
→
A
=
3
^
i
−
2
^
j
+
4
^
k
and
→
B
=
4
^
i
−
2
^
j
+
3
^
k
Open in App
Solution
Unit Vector,
^
A
=
→
A
|
A
|
=
3
^
i
−
2
^
j
+
4
^
k
√
26
^
B
=
→
B
|
B
|
=
4
^
i
−
2
^
j
+
3
^
k
√
29
Suggest Corrections
0
Similar questions
Q.
If
→
a
and
→
b
are vectors such that
|
→
a
+
→
b
|
=
√
29
&
→
a
×
(
2
^
i
+
3
^
j
+
4
^
k
)
=
(
2
^
i
+
3
^
j
+
4
^
k
)
×
→
b
then a possible value of
(
→
a
+
→
b
)
⋅
(
−
7
^
i
+
2
^
j
+
3
^
k
)
is
Q.
If
→
a
and
→
b
are vectors such that
|
→
a
+
→
b
|
=
√
29
and
→
a
×
(
2
^
i
+
3
^
j
+
4
^
k
)
=
(
2
^
i
+
3
^
j
+
4
^
k
)
×
→
b
, then a possible value of
(
→
a
+
→
b
)
.
(
−
7
^
i
+
2
^
j
+
3
^
k
)
is
Q.
Find the cosine of the angle between the directions of the vectors
→
a
=
4
^
i
+
3
^
j
+
^
k
,
→
b
=
2
^
i
−
^
j
+
2
^
k
.
Also find a unit vector perpendicular to both
→
a
and
→
b
. What is the sine of the angle between
→
a
and
→
b
?
Q.
Let
→
a
=
^
i
+
4
^
j
+
2
^
k
,
→
b
=
3
^
i
−
2
^
j
+
7
^
k
and
→
c
=
2
^
i
−
^
j
+
4
^
k
. Find a vector
→
d
which is perpendicular to both
→
a
and
→
b
, and
→
c
⋅
→
d
=
15
.
Q.
If
→
A
=
2
^
i
+
3
^
j
+
6
^
k
and
→
B
=
3
^
i
−
6
^
j
+
2
^
k
then vector perpendicular to both
→
A
and
→
B
has magnitude
K
times that of
6
^
i
+
2
^
j
−
3
^
k
. Then
K
=
View More
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
Related Videos
Unit Vectors
PHYSICS
Watch in App
Explore more
Unit Vectors
Standard XII Physics
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
AI Tutor
Textbooks
Question Papers
Install app