Question

Which of the following measurements is most accurate and which is more precise (give reason also
(i) 4.00 mm
(ii) 4.00 cm
(m) 4.00 m
(iv) 40.00 m​

Answer 1

Answer:

4.00 mm

à

Explanation:

its because the smallest we know will be the accurate one ...

Answer 2

The accurate and precise measurement are 40.00 m and 4.00 mm respectively.

Explanation:

• Accuracy is defined as the closeness of the measurements to a particular value. Out of given options, the most accurate value is 40 meters as the chances of getting relative error is least.
• Precision is defined as how close the measurements to each other. Out of given options, the precise value is 4.00 mm as it measured with a instrument of minimum least count.

Hence, accurate and precise measurement are 40.00 m and 4.00 mm respectively.

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Accuracy and precision

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