NEET Physics Scalar & Vector Products Assertion Reason Question
Assertion (A): The scalar product of two perpendicular vectors is zero. | Reason (R): The magnitude of the scalar product depends on the cosine of the angle between the vectors.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false but R is true.
Correct Answer
Detailed Explanation
The scalar product of two vectors is given by the product of their magnitudes and the cosine of the angle between them. For perpendicular vectors, this angle is 90 degrees, making the cosine zero, hence the scalar product is zero.
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