Scalars & Vectors (Addition and Subtraction, Scalar and Vector Products, Unit Vector, Resolution of a Vector) NEET Questions

Physics - Kinematics

Scalars & Vectors (Addition and Subtraction, Scalar and Vector Products, Unit Vector, Resolution of a Vector) MCQ Questions


7.
The cross product of two vectors A and B gives a vector:
A.
Parallel to A
B.
Parallel to B
C.
Perpendicular to both A and B
D.
Along the resultant
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ANSWER :
C. Perpendicular to both A and B
8.
The scalar product of two vectors is:
A.
Commutative
B.
Distributive
C.
Both A and B
D.
None of the above
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ANSWER :
C. Both A and B
9.
The cross product of two parallel vectors is:

NEET - 2018

A.
Zero vector
B.
A scalar
C.
A vector perpendicular to both
D.
Undefined
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ANSWER :
A. Zero vector
10.
If the dot product of two vectors A and B is zero, then the angle between them is:
A.
0°
B.
45°
C.
180°
D.
90°
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ANSWER :
D. 90°
11.
The magnitude of the cross product of two vectors is maximum when the angle between them is:
A.
0°
B.
45°
C.
180°
D.
90°
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ANSWER :
D. 90°
12.
The vector product (cross product) of two vectors A and B is a vector in the direction of:
A.
A
B.
B
C.
A + B
D.
A × B
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ANSWER :
D. A × B