NEET Physics Screw Gauge Match the Following Question
Match Column-I with Column-II.
Column-I Column-II (a) Least count of screw gauge (i) Total reading = linear scale reading + circular scale reading × least count (b) Average thickness calculation (ii) Measurement of thickness at five different positions (c) Zero error correction (iii) Observed mean thickness – (zero error with sign) (d) Sources of error (iv) Error due to backlash and non-uniform thickness
Choose the correct matching:
a-i, b-ii, c-iii, d-iv
a-ii, b-i, c-iv, d-iii
a-iv, b-iii, c-ii, d-i
a-iii, b-iv, c-i, d-ii
Correct Answer
Detailed Explanation
Option A contains all correct matches: the least count definition aligns with the total reading formula, the average thickness calculation involves measuring at different positions, zero error correction is accurately described, and the sources of error include backlash and uniformity issues.
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