| Example of Wien’s law |
|
|
|
|
|
|
|
|
|
|
|
|
| • | What is wavelength at which you glow? |
||||||||||
| – | Room
T = 300 K so |
||||||||||
| – | This
wavelength is about 20 times longer |
||||||||||
| than
what your eye can see. Camera in |
|||||||||||
| class
operated at 7-14 μm. |
|||||||||||
| • | What is temperature of the sun – which |
||||||||||
| has maximum intensity at roughly 0.5 m? |
|||||||||||