Monday, February 18, 2013

Douglas Middendorf Quiz

What is light?
A form of energy and wavelength.
What is matter?
Matter is the mass of atoms.
How do light and matter interact?
Light and matter interact through emission, absorption and transmission.
What are the three basic types of spectra?
Emission, continuous and absorption. 
How does light tell us what things are made of?
Atoms all have unique identifiers, or fingerprints. 
What is a photon?
A particle of light.
What is the speed of light?
299,792,458 m/s.
What is wavelength?
The distance between the crests of the wave.
What is frequency?
The rate that a wave completes a cycle.
What is the frequency of the 21 cm wavelength light?
1420.40575177 MHz

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