Physics

# By rounding off,  (a) $20.96$ and (b) $0.0003125$ to three significant figures, we get

$2.10 ; \ 3.12 \times 10^{-4}$

##### SOLUTION
By rounding off, 20.96 becomes 21.0 and 0.0003125 becomes $3.12\times 10^{-4}$

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Single Correct Medium Published on 18th 08, 2020
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