# Arrange the multiples and submultiples of the metre (unit of length) in the descending order of their unit value D. Micrometre M. Decimetre P. Decamet

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Arrange the multiples and submultiples of the metre (unit of length) in the descending order of their unit value

D. Micrometre

M. Decimetre

P. Decametre

F. Millimetre

T. Hectometre

1. F → D → M → P → T
2. T → P → M → F → D
3. D → F → T → P → M
4. F → T → M → P → D

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Correct Answer - Option 2 : T → P → M → F → D

The correct answer is T → P → M → F → D.

• The SI unit of length is a metre.
•  When a larger distance is to be covered, we cannot use the metre.
• To cover a larger distance we use km(kilometre), hm (hectometre), and da (decametre). These are called the multiples of Metre.
• When the distance is smaller, we use Dm (decimetre, cm(centimetre) and mm (millimetre). These are called the submultiples of Metre.
 Prefix Symbol Multiple Prefix Symbol Submultiple Yotta Y 1024 deci d 10-1 Zetta Z 1021 centi c 10-2 Exa E 1018 milli m 10-3 Peta P 1015 micro μ 10-6 Tera T 1012 nano n 10-9 Giga G 109 pico p 10-12 Mega M 106 femto f 10-15 Kilo k 103 atto a 10-18 Hecto h 102 zepto z 10-21 Deca da 101 yocto y 10-24