SSC
PHYSICS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Divide 100.00g / 2.00mL
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50g/mL
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5.0 x 101 g/mL
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50.0g/mL
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50.00g/mL
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Explanation:
Detailed explanation-1: -so 1000. is our four-significant-figure answer. (from rules 5 and 6, we see that in order for the trailing zeros to “count” as significant, they must be followed by a decimal. Writing just “1000” would give us only one significant figure.)
Detailed explanation-2: -To round to a significant figure: look at the first non-zero digit if rounding to one significant figure. look at the digit after the first non-zero digit if rounding to two significant figures.
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