Diffraction gratings Flashcards
1
Q
Diffraction
A
The bending of waves around an object.
2
Q
Path difference
A
The difference in distance travelled by two coherent waves.
3
Q
Diffraction grating
A
A screen with many slits close together.
4
Q
Spectra
A
The mixture of wavelengths in light.
5
Q
Emission spectra
A
Light that is emitted when electrons are excited by heat or energy.
6
Q
Equation for refraction
A
Speed of light before material / Speed of light after material
