4. Write down the steps to measure the thickness of a one-rupee coin.
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Explanation:
how to this process see the image below to know how to do
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by a screw gauge.
steps.
• determine the peach the least count and the zero error of the screw gauge.
• please the coin between the to studs.
• rotate the head until the coin is held firmly but not tightly with the help of the ratchat.
• note the reading of the pitch scale crossed by the head scale (PSR) and the head scale division that coincides with the pitch scale axis (HSC)
• tabulate the readings .
• the average of the last column readings gives the thickness of the coin .
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