You might see an absorption spectra if you looked at a spectra of, what?

Question

Also,
You might see an emission spectra if you looked at a spectra of, what?

You might see an continuous spectra if you looked at a spectra of, what?

Okay but can you give me examples like for continues spectrum the sun would be an example, thanks.

Answer 1

A material's absorption spectrum shows the fraction of incident electromagnetic radiation absorbed by the material over a range of frequencies. Every chemical element has absorption lines at several particular wavelengths corresponding to the differences between the energy levels of its atomic orbitals. For example, an object that absorbs blue, green and yellow light will appear red when viewed under white light. Absorption spectra can therefore be used to identify elements present in a gas or liquid. This method is used in deducing the presence of elements in stars and other gaseous objects which cannot be measured directly.
Emission Spectra:
An element's emission spectrum is the relative intensity of electromagnetic radiation of each frequency it emits when it is heated (or more generally when it is excited).
When the electrons in the element are excited, they jump to higher energy levels. As the electrons fall back down, and leave the excited state, energy is re-emitted, the wavelength of which refers to the discrete lines of the emission spectrum. Note however that the emission extends over a range of frequencies, an effect called spectral line broadening.
The term often refers to the visible light emission spectrum, although it extends to the whole electromagnetic spectrum, from the low energy radio waves up to high energy gamma rays.
The emission spectrum can be used to determine the composition of a material, since it is different for each element of the periodic table. One example is identifying the composition of stars by analysing the received light.
Continuous Spectra:
Continous spectrum, a spectrum not broken by bands or
lines, but having the colors shaded into each other
continously, as that from an incandescent solid or liquid,
or a gas under high pressure.

Answer 2

Absorption spectra come from UV/Vis analysis - you have to have bonds that absorb light. When they absorb this light, electrons can be excited from the ground state to an excited state.

Emission spectra come from those excited electrons coming back down from the excited state. This is called luminescence, and there are many types.

A continuous spectrum would come from examining a source that exhibits all wavelengths of light: white light. (That's of course in the visible range)

Answer 3

it particularly is referred to as doppler or pink shift. you be attentive to ways while a automobile comes in direction of you it sounds greater and while it passes you it sounds decrease? properly mild from some thing is coming in direction of the Earth has a redder spectrum and a some thing shifting away has a bluer spectrum. The farther to one side the speedier it particularly is shifting.