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Accuracy of screw gauge can be increased...

Accuracy of screw gauge can be increased by …………. The number of divisions on circular scale.

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To solve the question "Accuracy of screw gauge can be increased by …………. The number of divisions on circular scale," we need to understand the relationship between the number of divisions on the circular scale of a screw gauge and its accuracy. ### Step-by-Step Solution: 1. **Understanding Screw Gauge**: A screw gauge (or micrometer screw gauge) is an instrument used to measure small dimensions with high precision. It consists of a main scale and a circular scale. 2. **Role of Circular Scale**: The circular scale is crucial for enhancing the measurement accuracy. It allows for finer measurements by providing additional divisions. ...
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Answer the following : (a) You are given a tread and a metre scale. How will you estimate the diameter of the thread ? (b) A screw gauge has a pitch of 1.0 mm and 200 divisions on the circular scale. Do you think it is possible to increase the accuracy of the screw gauge arbitratily by increasing the number of divisions on the circular scale ? (c) The mean diameter of a thin brass rod is to be measured by vernier callipers. Why is a set of 100 measurements of the diameter expected to yield a more reliable estimate than a set of 5 measurement only ?

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