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PART - 1 CH - 1 Units and Measurements — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysicsPART - 1 CH - 1 Units and Measurements1 Mark
Question
Add 4.8 x 10-8 to 5.2 x 10-7 on the basis of significant figures.
✓

Answer


$\begin{array}{ll}& 4.8 \times 10^{-8}+5.2 \times 10^{-7} \\ \Rightarrow & 0.48 \times 10^{-7}+5.2 \times 10^{-7} \\ \Rightarrow & 10^{-7}(0.48+5.2) \\ \Rightarrow & 5.68 \times 10^{-7} \\ \Rightarrow & 5.7 \times 10^{-7}\end{array}$

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