The inner diameter of a small test tube can be measured accurately using a
A.
Micrometres screw gauge
B.
Pair of dividers
C.
Metre rule
D.
Pair of vernier calliper
Correct Answer: Option D
Explanation
A vernier scale is a visual aid to take an accurate measurement reading between two graduation markings on a linear scale by using mechanical interpolation; thereby increasing resolution and reducing measurement
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