A metre rule is used to measure the length of a piece of string in a certain experiment. It is found to be 20 cm long to the nearest millime

Question

A metre rule is used to measure the length of a piece of string in a certain experiment. It is found to be 20 cm long to the nearest millimeter. How should thisresult be recorded in a table of results? a. 0.2000m b. 0.200m c. 0.20m d. 0.2m​

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Gia Bảo 5 years 2021-07-14T11:29:40+00:00 1 Answers 541 views 1

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  1. minhkhang
    0
    2021-07-14T11:31:17+00:00
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    Answer:

    C

    Explanation:

    20 cm = 0.2m

    since uncertainty is 0.1 cm (0.001 m), should be recorded to same number of decimal place as uncertainty

    therefore it’s 0.200m

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