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i just wanted to clarify the section of flourescence in the physical science book(review book) chap 11, pg 363..
So when an electron absorbs energy, the energy has to have a high frequency(shorter wavelength) to be able to eject the electron into a higher energy level right??
now the book said Floureccence is the process in which certain substances emit visible light when excited by other radiation(confused about this because i thought the electron absorbs the light(excites the electron) and not emit light except when it is coming down to a lower energy level. Does this mean that as the electron is ejected in addition to absorbing energy, it also emits some photon of lower frequency(higher) wavelength??
So when an electron absorbs energy, the energy has to have a high frequency(shorter wavelength) to be able to eject the electron into a higher energy level right??
now the book said Floureccence is the process in which certain substances emit visible light when excited by other radiation(confused about this because i thought the electron absorbs the light(excites the electron) and not emit light except when it is coming down to a lower energy level. Does this mean that as the electron is ejected in addition to absorbing energy, it also emits some photon of lower frequency(higher) wavelength??
