Question

1 μm is :

• A. 10^-6 m
• B. 10^-9 m
• C. 10^-10 m
• D. 10^-3 m

Answer 1

The correct option is A

10^-6 m

The correct option is A:

Explanation:

1. 1 μm or 1micrometer is equal to 10^-6 m i.e. one-millionth of a meter.
2. The next smallest unit after a micrometer is a nanometer. 1nm or 1nanometer is equal to 10^-9 m i.e. one billionth of a meter.
3. 1 Angstrom or 1Å is equal to 10^-10 m. Angstrom(Å) is a unit of length.
4. 1 millimeter or 1mm is equal to 10^-3 m. A Millimeter(mm) is a unit of length.

Final answer:

Hence, 1 μm is 10^-6 m.