NEET Physics Scalar & Vector Products Assertion Reason Question
Assertion (A): The scalar product of two perpendicular vectors is zero. | Reason (R): The scalar product involves the cosine of the angle between 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.
Correct Answer
Detailed Explanation
For the scalar product of two vectors, the cosine of the angle between them is used. If the vectors are perpendicular, the angle is 90 degrees, and cos(90°) is zero, making the scalar product zero.
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