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Help pls this aint physics.

Help pls this aint physics.-example-1
User FastAl
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Answer:

Human beings can see "visible" light.

Visible light is considered to be between 4000-7000 Angstroms or

400-700 millimicrons

1 Angstron = 1E-10 m

1 Millimicron = 10 Angstroms

User Clh
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