Answer: The correct option is (B) \(1\times 10^{-6}.\)
Step-by-step explanation: We are to select the correct number from the options that is equal to 0.000001.
Option (A) is
\(1\times 10^{-5}.\)
We have
\(1\times 10^{-5}=\dfrac{1}{10^5}=\dfrac{1}{100000}=0.00001
eq 0.000001.\)
So, this option is not correct.
Option (B) is
\(1\times 10^{-6}.\)
We have
\(1\times 10^{-6}=\dfrac{1}{10^7}=\dfrac{1}{1000000}=0.000001.\)
So, this option is CORRECT.
Option (C) is
\(1\times 10^{-7}.\)
We have
\(1\times 10^{-7}=\dfrac{1}{10^7}=\dfrac{1}{10000000}=0.0000001
eq 0.000001.\)
So, this option is not correct.
Option (D) is
\(1\times 10^{-8}.\)
We have
\(1\times 10^{-8}=\dfrac{1}{10^8}=\dfrac{1}{100000000}=0.00000001
eq 0.000001.\)
So, this option is not correct.
Thus, the correct option is (B).
