A micrometer is defined as one millionth of a millimeter. A length of 12,000 micrometres may be represented as
A
0.00012m
B
0.0000012m
C
0.000012m
D
0.00000012m
E
0.000000012m
Verified Correct Answer: C.
Step-by-Step Mathematical Solution
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
Source: Myschool Past Questions Archive (Record #32572)