Physics-Screw Gauge
NEET Physics Screw Gauge Assertion Reason Question
Type: Assertion Reason-assertion-Easy-Class 12
Assertion (A): The least count of a screw gauge determines the smallest length that can be measured accurately. | Reason (R): The least count is calculated by dividing the pitch of the screw by the number of divisions on the circular scale.
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 A
Detailed Explanation
Both statements are true and related. The least count is indeed the smallest length that can be measured, and it is calculated as the pitch divided by the number of divisions on the circular scale.
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