6 - Foundations of Modern Physics Flashcards
1
Q
What happens when a gas is heated? What happens if the light is passed through a diffraction grating?
A
- light is emitted
- fringes are created that correspond to each emitted wavelength.
2
Q
What happens when a gas is cooled? What happens if the light is passed through a diffraction grating?
A
- light is absorbed
- few missing fringes in an almost complete spectrum
3
Q
What is a blackbody?
A
A perfect emitter of a continuous spectrum
4
Q
What is blackbody radiation?
A
The continuous spectrum that a blackbody emits
5
Q
What happens to the intensity and wavelength as the temperature increases?
A
As the temperature increases the intensity increases and the peak wavelength decreases
