A micrometer is defined as one millionth of a millimeter. A length of 12,000 micrometres may be represented as
The correct answer is: C
Explanation
1 UM = 10\(^{-6}\)mm
= 10\(^{-9}\)m
1.2 x 10\(^4\) x 10\(^{-9}\)m
= 1.2 x 10\(^{-5}\)m = (0.000012)m