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Physics Class 11 - Chapter 2
Vectors And EquilibriumTest - 5
1.
The minimum no. of unequal vectors whose vector sum can be zero is?
a) 4
b) 3
c) 5
d) 2
2.
Area of parallelogram is equal to magnitude of?
a) Scalar product
b) dot product
c) Both
d) Cross product
3.
Angular acceleration is produced by?
a) Angular momentum
b) Force
c) All of these
d) Torque
4.
The cross product of two vectors is a negative vector when?
a) They are perpendicular to each other
b) The are parallel to each other
c) They are at an angle of 90
d) They are anti-parallel to each other
5.
The resultant of two vectors of magnitude 2 and 3 is 1,the angle of them is?
a) 60
b) 180
c) 45
d) 90
6.
Vector product does not satisfy?
a) Distributive
b) Addition
c) All of these
d) Associative
e) Commutative
7.
In which quadrant, only value of tan is positive?
a) 2nd
b) 1st &3rd
c) 1st
d) 3rd
8.
The minimum no. of unequal vectors whose vector sum can be zero is?
a) 3
b) 5
c) 4
d) 2
9.
Angle between ixj and -ixj is?
a) 90
b) 0
c) 45
d) 180
10.
The magnitude of I’.(j’xk’) is?
a) 0
b) 1
c) i’
d) -1
11.
If AxB is along x-axis then A and B lies in?
a) x y z plane
b) x-z plane
c) x-y plane
d) y-z plane
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