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A test-tube has a diameter of 3cm. how many turns would a piece of thread of length 90.42cm make round the test tube.(Take π=22/7) .
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Aug 26, 2021
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Chemistry Form 1
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anonymous
A test-tube has a diameter of 3cm. how many turns would a piece of thread of length 90.42cm make round the test tube.(Take π=22/7) .
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Aug 26, 2021
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anonymous
C=Πd 22/7x3 cm=9.43cm. NO of turns= 90.42cm/9.43cm= 9.58 turns.
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