Make an estimate of the measures of the following things. Then check your estinate against an actual measurement Name Estimate Actual measurement using tape/scale Length of a ladyfinger Length of a churter bean (guari pod Height of a jowar plant The girth of a haryan tree trunk Dutance betwee trec in your school.
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Step-by-step explanation:
Wrap the thread on a uniform smooth rod in such a way that the coils thus formed are very close to each other. Measure the length of the thread using a metre scale. The diameter of the thread is given by the relation,
Diameter = Length of rod/Number of turns
(b) It is not possible to increase the accuracy of a screw gauge by increasing the number of divisions of the circular scale. Increasing the number of divisions of the circular scale will increase its accuracy to a certain extent only.
(c) A set of 100 measurements is more reliable than a set of 5 measurements because random errors involved in the former are very less as compared to the latter.
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