Question

one micron is equal to- a) 1/10th of a mm b)1/100th of a mm c) 1/1000th of a mm d) one millionth of a millimetre
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Answer 1

explain

Micrometer A micrometer (also called a micron) is 1000 times smaller than a millimeter. 1 millimeter (mm) = 1000 micrometers (μm). 4. Nanometer A nanometer is 1000 times smaller than a micrometer. 1 micrometer (μm) = 1000 nanometers.

Answer 2

Hey mate.

The micrometre (international spelling as used by the International Bureau of Weights and Measures SI symbol: μm) or micrometer (American spelling), also commonly known as a micron, is an SI derived unit of length equalling 1×10−6 metre (SI standard prefix "micro-" = 10−6); that is, one millionth of a metre (or one thousandth of a millimetre, 0.001 mm, or about 0.000039 inch).