Physics-(general)
NEET Physics (general) Assertion Reason Question
Type: Assertion Reason-assertion-Medium-Class 12
Assertion (A): The accuracy of a physical balance is affected by the friction between its knife-edge and plate. | Reason (R): The friction between the knife-edge and plate can be completely removed by sharpening the knife-edge and smoothing the plate.
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.
Correct Answer
Option C
Detailed Explanation
The NCERT context states that while friction can be minimized by sharpening the knife-edge and smoothing the plate, it cannot be completely removed.
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