For measuring smaller lengths, units such as centimetres (cm) and millimetres (mm)
are used. One centimetre is equal to one-hundredth of a metre (1 cm = 0.01 m), and one millimetre is equal to one-thousandth of a metre (1 mm = 0.001 m).
Class VI NCERT Book Curiosity Science
What units are used for measuring smaller lengths, and what is their relationship to the metre?
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Smaller lengths are measured using units like millimeters (mm), micrometers (µm), and nanometers (nm). The relationship to the meter is as follows: 1 meter = 1,000 millimeters = 1,000,000 micrometers = 1,000,000,000 nanometers. These units provide precision for measuring very small distances, essential in fields like science and engineering.