Physics-Vectors
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Test Preparation on Physics-Vectors
1.
1
a
2
b
3
c
4
d
2.
1
a
2
b
3
c
4
d
3.
1
(i - 7j -2k)
2
(i - 7j +2k)
3
(i - 7j +3k)
4
(i - 7j x2k)
4.
1
centroid of DABC
2
orthocentre of DABC
3
circumcentre of DABC
4
incentre of DABC
5.
The vectors (x, x+ 1, x + 2), (x + 3, x + 4, x + 5) and (x + 6, x + 7, x + 8) are coplanar for
1
all values of x
2
x < 0
3
x > 0
4
none of these
6.
1
a = (4n + 1)p
2
a = (4n + 2)p
3
a = (4n + 1)p + Tan
4
a = (4n + 2)p + Tan
7.
1
4√3
2
4√5
3
4√7
4
4√6
8.
1
0
2
?/4
3
?/3
4
?/2
9.
1
a = 1
2
a = 1
3
a = +-2
4
a = +-1
10.
1
(i + 3j + k)
2
(3i + 7j + 3k)
3
j + t(i + 2j + k) where
4
I + (t + 3)j + k where
11.
1
2i + 3j
2
2i + 3j + 3k
3
2i + 3j - 3k
4
2i + j + 5k
12.
If A, B, C are three points with position vectors (i + j)
1
p = q = r = 1
2
p = q = r = 0
3
p = q, r = 0
4
p = 1, q = 2, r = 0
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