Correct Answer: Option A

Explanation

\(\frac{0.0001432}{1940000}\) = k x 10ⁿ

where 1 \(\leq\) k \(\leq\) 10 and n is a whole number. Using four figure tables, the eqn. gives 7.38 x 10^-11

k = 7.381, n = -11

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