What does A means here?

Dear Student,

This is not A this is Å (Angstrom)
​​​​​Angstrom is a unit used to measure distance/length. It has the Dimension [L].
It is usually used to measure, interatomic distances and wavelength of high-frequency waves like visible light.

​​​​​In terms of meters: 1 Angstrom = 10^-10 meters

​​​​​​​Regards.


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