Why every metal is red in colour after mealting it ?
Dear student ,
For metals, when they are heated, the energy of the electrons increases. As the energy increases, the photons that are emitted fall in the wavelength of the visible spectrum. Initially, the metal is emitting infra red radiation invisible to the naked eye. When the emitted photons get more energy, they reach the red region of the visible spectrum.
Regards
For metals, when they are heated, the energy of the electrons increases. As the energy increases, the photons that are emitted fall in the wavelength of the visible spectrum. Initially, the metal is emitting infra red radiation invisible to the naked eye. When the emitted photons get more energy, they reach the red region of the visible spectrum.
Regards