Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-conceptual-Medium-Class 11
Which of the following statements about the scalar product of two vectors A and B is correct?
A
The scalar product A . B is always a positive value regardless of the angle between A and B.
B
A . B is a scalar quantity that depends on the magnitudes of A and B as well as the cosine of the angle between them.
C
If A and B are perpendicular, then their scalar product equals the product of their magnitudes.
D
The scalar product A . B can be negative if the angle between the vectors is greater than 90 degrees.
Correct Answer
Option B
Detailed Explanation
The scalar product A . B is defined as A B cos θ, which means it is a scalar quantity and depends on the magnitudes of A and B as well as the cosine of the angle θ between them, as mentioned in the NCERT context.
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