A sample of absorption spectra is like the photographic negative of the emission spectra of a given element.
A sample of absorption spectra is like the photographic negative of the emission spectra of a given element.
The correct option is A True
What is absorption spectrum?
When light from an arc (white light) is passed through a sample containing one element, the molecules or atoms in the sample absorb radiation of some specific wavelengths. The remaining light decomposed by means of a prism and the split wavelengths are recorded. What is recorded is a continuous spectrum but with some dark lines which exactly correspond to the radiation absorbed by the elements emission spectrum. The overall result - what is recorded on the plate - is referred to as absorption spectrum.
Then what is emission spectrum?
When a sample is subjected to heating or irradiation, it absorbs radiation or energy and gets excited. As the sample gives up the absorbed energy, the wavelength (or frequency) of the radiation emitted is recorded.
The arrangement of these radiations in the order of increasing wavelengths or decreasing frequencies is called emission spectrum.
so, we can imagine that an atomic spectrum will be like the photographic negative of an emission spectrum.
Look at this picture and you will understand.
True
What is absorption spectrum?
When light from an arc (white light) is passed through a sample containing one element, the molecules or atoms in the sample absorb radiation of some specific wavelengths. The remaining light decomposed by means of a prism and the split wavelengths are recorded. What is recorded is a continuous spectrum but with some dark lines which exactly correspond to the radiation absorbed by the elements emission spectrum. The overall result - what is recorded on the plate - is referred to as absorption spectrum.
Then what is emission spectrum?
When a sample is subjected to heating or irradiation, it absorbs radiation or energy and gets excited. As the sample gives up the absorbed energy, the wavelength (or frequency) of the radiation emitted is recorded.
The arrangement of these radiations in the order of increasing wavelengths or decreasing frequencies is called emission spectrum.
so, we can imagine that an atomic spectrum will be like the photographic negative of an emission spectrum.
Look at this picture and you will understand.
