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What is the number of significant figure...

What is the number of significant figures in each of the following ?
(i) Mass of electron `= 9.108 xx 10^(-31) kg`
(ii) Mass of proton `= 1.672 xx 10^(-27) kg`
(iii) `0.00564`.

Text Solution

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`{:("(i)","Mass of electron ="9.108xx10^(-31)"kg.","(Four significant figures)"),("(ii)","Mass of proton ="1.672xx10^(-27)"kg","(Four significant figures)"),("(iii)",0.00564,"(Three significant figures)"):}`
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