A screw gauge gives the following reading when used to measure the diameter of a wire.

Main scale reading : $0 mm$

Circular scale reading: $52$ divisions

Given that $1 mm$ on the main scale corresponds to

100 divisions of the circular scale.

The diameter of the wire from the above data is

Question

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Answer:

A

Solution:

Diameter of wire,

$d = M S R + C S R \times L C$

$= 0 + 52 \times \frac{1}{100}$

$= 0.52 m m = 0.052 c m .$

TestHub · Accepted Answer

Diameter of wire, d = M S R + C S R × L C = 0 + 52 × 1 100 = 0.52 m m = 0.052 c m .

Physics - Unit & Dimension Question with Solution | TestHub

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