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The length of a strip measured with a metre rod is 10.0 cm. Its width measured with a vernier calipers is 1.00 cm. The least count of the metre rod is 0.1 cm and that of vernier calipers is 0.01 crn. What will be error in its area?
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A physical quantity A is related to four observable a, b, c and d as . The percentage errors of measurement in a, b, c and d are 1 %, 3 %, 2 % and 2 % respectively. What is the percentage error in the quantity A ?
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