Question

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The density of a solid ball is to be determined in an experiment. The diameter of the ball is measured with a screw gauge, whose pitch is mm and there are divisions on the circular scale. The reading on the main scale is mm and that on the circular scale is divisions. If the measured mass of the ball has a relative error of , the relative percentage error in the density is?
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Answer 1

Answer:

Refer the attachment above

Answer 2

Answer:

The circular scale division reading is 20 and the relative error in percentage is 2%.

The diameter of the ball will be equal to the screw gauge reading.

Hope this helps ✌️