Screw Gauge Pitch Calculation – Rankers Physics

Screw Gauge: Practice Problem & Solution

A screw gauge has least count of \(0.01 \text{mm}\) and there are \(50 \text{divisions}\) in its circular scale. The pitch of the screw gauge is: [NEET 2020]
\(0.25 \text{mm}\)
\(0.5 \text{mm}\)
\(1.0 \text{mm}\)
\(0.01 \text{mm}\)

Short Solution (Best for NEET):

To solve this problem, we apply the core principles of Screw Gauge. Understanding the underlying formula is key to arriving at the correct answer below:

Least Count (LC) = \(0.01 \text{mm}\), Number of divisions on circular scale = \(50\). The formula for LC is: LC = Pitch / Number of divisions. Therefore, Pitch = LC \(\times\) Number of divisions = \(0.01 \text{mm} \times 50 = 0.5 \text{mm}\).

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