A screw gauge has 100 divisions on its circular scale and in one complete rotation the screw advances by 1 mm. With a wire held between the studs, the linear scale shows that the 6 mm mark is just cro

Question

A screw gauge has 100 divisions on its circular scale and in one complete rotation the screw advances by 1 mm. With a wire held between the studs, the linear scale shows that the 6 mm mark is just crossed and the 38th division of the circular scale coincides with the reference line. Find the diameter of the wire.

Answer:

6.38

Solution:

LC $= \frac{1 mm}{100} = 0.01$ mm

Reading $= 6 + 38 \times 0.01 = 6.38$ mm

TestHub · Accepted Answer

LC = 100 1 mm ​ = 0.01 mm Reading = 6 + 38 × 0.01 = 6.38 mm

Physics - Error Question with Solution | TestHub

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