Waves Flashcards
What transition produces the shortest wavelength?
The longest transition
What transition produces the largest wavelength?
The shortest transition
What is irridance?
Power incident per unit area
Does the inverse square law work for lasers?
No, they are not point sources
What is a critical angle?
The angle of incidence that results in the angle of refraction being 90°
What happens when a prisim with lower refractive index is used?
Less dispersion
What are the differences between prism spectra and diffraction grating spectra?
Prisms produce a single spectra and diffraction gratings produce multiple.
Prisim spectra are in roygbiv order and diffraction grating spectra are vibgyor order.
Violet light scatters the most with prisim spectra and in diffraction grating spectra red scatters the most.
Describe a prisim spectra
Single spectra
Roygbiv order
Violet is scattered the most
Describe a diffraction grating spectra
Multiple spectra
In vibgyor order
Red scatters the most
What are coherent waves?
Coherent waves have a constant phase relationship.
When does a maxima occur?
When waves meet in phase.
What happens when waves meet in phase?
A maxima occurs
What happens to the frequency of light when it goes from air to glass?
It doesn’t change.
What happens to the wavelength of light when it travels from air to glass?
It decreases.
What happens to the speed of light when it goes from air to glass?
It decreases
