Physics-(general)
NEET Physics (general) Assertion Reason Question
Type: Assertion Reason-assertion-Hard-Class 11
Assertion (A): The dot product of two vectors is zero if the vectors are perpendicular.
Reason (R): The dot product of two vectors A and B is given by A . B = A B cos θ, where θ is the angle between them.
A
Both A and R are true and R is the correct explanation of A.
B
Both A and R are true but R is not the correct explanation of A.
C
A is true but R is false.
D
A is false but R is true.
Correct Answer
Option A
Detailed Explanation
The assertion and reason are both true, and the reason correctly explains the assertion because when θ is 90 degrees, cos θ = 0, making the dot product zero.
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