1
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
$$\overrightarrow A $$ and $$\overrightarrow B $$ are two vectors and $$\theta $$ is the angle between them, if $$\left| {\overrightarrow A \times \overrightarrow B } \right| = \sqrt 3 \left( {\overrightarrow A .\overrightarrow B } \right),$$ the value of $$\theta $$ is
A
45o
B
30o
C
90o
D
60o
2
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
A particle starting from the origin (0, 0) moves in a straight line in the (x, y) planes. Its coordinates at a later time are $$\left( {\sqrt 3 ,3} \right)$$. The path of the particle makes with the x-axes an angle of
A
45o
B
60o
C
0o
D
30o.
3
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
For angles of projection of a projectile at angle (45o $$-$$ $$\theta $$) and (45o + $$\theta $$), the horizontal range described by the projectile are in the ratio of
A
2 : 1
B
1 : 1
C
2 : 3
D
1 : 2.
4
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
The vectors $$\overrightarrow A $$ and $$\overrightarrow B $$ are such that $$\left| {\overrightarrow A + \overrightarrow B } \right| = \left| {\overrightarrow A - \overrightarrow B } \right|.$$ The angle between the two vectors is
A
45o
B
90o
C
60o
D
75o
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