Question

One micrometer is a unit equivalent to _________.

• A. 10${}^{-3}$m
• B. 10${}^{-6}$m
• C. 10${}^{-9}$m
• D. 10${}^{-12}$m

Answer 1

The correct option is B 10${}^{-6}$m

Micrometer is an SI derived unit of length equaling 1×10⁻⁶ of a metre. SI symbol: μm. Hence option B is correct.