If a measured quantity has na significant figures, the reliable digits in it are
a. n
b. n-1
c. 2n
d. n/2
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2
Answer:
A measured quantity containing n significant figures has n−1 reliable digits.
For example: The quantity a=1.2673 has 5 significant figures but it contains only 4 reliable digits i.e 1.267 only.
Because it can be a possiblity that the quantity was acually a=1.26728 and after rounding off, it becomes 1.2673.
Hence the last digit i.e 3 is uncertain
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