Question

what will be no. of significant figure in 0.007 m²​

Answer 1

Answer:

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0.007m2 : In this case the number 0.007 can be written as 7×10−3. Hence, the only significant figure here is 7 i.e. there is only one significant figure in this number. b) 2.64×1024 kg : In this case the number 2.64 has three figures which are non-zero figures, which makes all of them to be significant numbers.