Question

What is the SI unit of length . Give its standard definition.​

Answer 1

hiii mate

$answer$

The SI unit of length is metre (M).

The distance between two marks on a bar of platinum alloy at 0°C temperature at 1 bar pressure . Preserved at International Bureau of Weights and Measurements at Paris , France .

One standard metre = 16,50,763.73 wavelength of orange red light emitted by pure crypton = 86.

Hope it helps ☺️

Answer 2

Explanation:

hiii mate

answeranswer

The SI unit of length is metre (M).

The distance between two marks on a bar of platinum alloy at 0°C temperature at 1 bar pressure . Preserved at International Bureau of Weights and Measurements at Paris , France .

One standard metre = 16,50,763.73 wavelength of orange red light emitted by pure crypton = 86.

Hope it helps ☺️