what is nanometres ? how to measure it
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The nanometre or nanometer is a unit of length in the metric system, equal to one billionth of a metre. One nanometre can be expressed in scientific notation as 1×10⁻⁹ m, and as 1/1000000000 metres.
Symbol: nm
Unit of: length
SI units: 1×10−9 m; 1×103 pm
Unit system: metric
Natural units: 6.1877×1025 ℓP; 18.897 a0
imperial/US units: 3.2808×10−9 ft; 3.9370×10−8 in
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A nanometer is a unit of measurement for length just as you have with meters and centimeters. A nanometer is one billionth of a meter, 0.000000001 or 10-9 meters. The word nano comes from the Greek word for “dwarf.” The term nanoscale is used to refer to objects with dimensions on the order of 1-100 nanometers (nm).
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