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If we continue heating a piece of initially room-temperature metal in a dark room, what will be its first visible color?.
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If we continue heating a piece of initially room-temperature metal in a dark room, what will be its first visible color?.

User Risal Fajar Amiyardi
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Answer:

Red is the longest of the visible wavelengths.

One would see red first

The visible spectrum can be characterized by "ROY G BIV".

Or

Red-Orange-Yellow-Green-Blue-Indigo-Violet

From the longest wavelength to the shortest (7000-4000 Angstroms)

User Roman Gonzalez
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