Chapter 8: Vector Algebra I - Online Test
Q1. The value of 
is
is
Answer : Option C
Explaination / Solution:
Q2. If 
are parallel, then the value of m is
are parallel, then the value of m is
Answer : Option C
Explaination / Solution:
Q3. The unit vector parallel to the resultant of the
vectors iˆ + jˆ − kˆ and iˆ − 2 jˆ + kˆ is
Answer : Option D
Explaination / Solution:
Q4. A vector 
makes 60° and 45° with the
positive direction of the x and y axes respectively. Then the angle between and the z-axis is
makes 60° and 45° with the
positive direction of the x and y axes respectively. Then the angle between and the z-axis is
Answer : Option B
Explaination / Solution:
Q5. If 
= 3iˆ + 2 jˆ + kˆ and the position
vector of B is iˆ + 3jˆ − kˆ, then the position vector A is
= 3iˆ + 2 jˆ + kˆ and the position
vector of B is iˆ + 3jˆ − kˆ, then the position vector A is
Answer : Option B
Explaination / Solution:
Q6. A vector makes equal angle with the positive direction of the coordinate axes. Then each angle is equal to
Answer : Option C
Explaination / Solution:
Q7. The vectors 
are
are
Answer : Option D
Explaination / Solution:
No Explaination.
Q8. If ABCD is a parallelogram, then 
is
equal to
is
equal to
Answer : Option D
Explaination / Solution:
Q9. One of the diagonals of parallelogram ABCD with 
and 
as adjacent sides is + . The other diagonal 
is
and as adjacent sides is + . The other diagonal is
Answer : Option B
Explaination / Solution:
Q10. If , are the position vectors A and B, then which one of the following points whose position vector
lies on AB, is
, are the position vectors A and B, then which one of the following points whose position vector
lies on AB, is
Answer : Option C
Explaination / Solution:
