Question

A student measured the diameter of a thick wire using a micrometer screw gauge of least count 0.001 cm.
He recorded the readings as: Observation 1 2 3 4 5 6
No. Observed diameter d cm
0.258 0.262, 0.252, 0.256 0.260, 0.254
Now answer the following questions. What is the true value of diameter of the given wire in cm?
(a) 0.256 (b) 0.257 (c) 0.267 (d) 0.258 Which of the observation is most accurate?
(a) 1 and 2 (b) 4 and 5 (c) 1 and 4 (d) 2 and 5
Calculate the mean value of absolute error in Arul's experiment.
(a) 0.003 (b) 0.002 (c) 0.300 (d) 0.302 What is the relative error percent in his experiment?
(a) 1.27% (b) 1.16% (C) 2.27% (d) 1.17%
How should the diameter of wire determined by student be expressed as? (a) (0.25720.005) cm (b) (0.257+0.003) cm (c) (0.25620.005) cm (d) (0.25610.003) cm​

Answer 1

Answer:

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