Physics-(general)
NEET Physics (general) Assertion Reason Question
Type: Assertion Reason-assertion-Hard-Class 11
Assertion (A): The work done by a force is zero if the force is perpendicular to the displacement of the object. | Reason (R): The scalar product of two perpendicular vectors is zero.
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 is correct because the work done, being the scalar product of force and displacement, is zero when the vectors are perpendicular. The reason correctly explains this by stating that the scalar product of perpendicular vectors is zero.
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