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


1.
The sum of two vectors is zero. The two vectors are:
A.
Equal in magnitude, opposite in direction
B.
Equal in magnitude, same in direction
C.
Perpendicular to each other
D.
Parallel
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ANSWER :
A. Equal in magnitude, opposite in direction
2.
Which of the following is a vector quantity?
A.
Speed
B.
Distance
C.
Displacement
D.
Time
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ANSWER :
C. Displacement
3.
The magnitude of the sum of two vectors A and B is maximum when the angle between them is:
A.
0°
B.
45°
C.
90°
D.
180°
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ANSWER :
A. 0°
4.
The vector sum of A = 2i + 3j and B = 4i - 2j is:
A.
6i + j
B.
6i + 5j
C.
6i - j
D.
6i + 3j
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ANSWER :
B. 6i + 5j
5.
The magnitude of the resultant of two vectors is maximum when the angle between them is:

NEET - 2020

A.
0°
B.
45°
C.
90°
D.
180°
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ANSWER :
C. 90°
6.
The dot product of two perpendicular vectors is:
A.
1
B.
0
C.
-1
D.
Undefined
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ANSWER :
B. 0