Home Physics Units and Measurements Dimensional Analysis Assertion A: If in five complete rotations o…
Physics Units and Measurements Dimensional Analysis Single Correct MCQ
Published on: September 13, 2026

Assertion A: If in five complete rotations of the circular scale, the distance travelled on main scale of the screw gauge is 5mm and there are 50 total divisions on circular scale, then least count is 0.001cm.

Reason R:

choose the most appropriate answer from the options given below:

A
A is not correct but R is correct.
B
Both A and R are correct and R is the correct explanation of A.
C
A is correct but R is not correct.
D
Both A and R are correct and R is NOT the correct explanation of A.

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Text Solution

Verified by Experts
The correct answer is:
A

In 5 revolution, distance travel, 5mm In 1 revolution, it will travel 1mm.

So least count

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