Q.

Perform the following calculations and express the result to proper number of significant figures3.50×102cm4.00×106cm

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a

14.0 × 108

b

14.0 × 105

c

15.0 × 108

d

15.0 × 1010

answer is A.

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Detailed Solution

3.50×102cm×4.00×106cm=14.0×108cm2(up to 3 significant figures)
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