| Thread Closed |
Black body Radiation |
Share Thread |
| May22-05, 12:33 PM | #1 |
|
|
Black body Radiation
If the sun at temperature 6000K emits onto an asteroid 350million km away, what is the temperature of the asteroid assuming it is a black body?
Any suggestions how to go about this please?
|
| May22-05, 12:39 PM | #2 |
|
|
HINT: You'll need the equations for flux and the luminosity of a blackbody. |
| May22-05, 11:49 PM | #3 |
|
Recognitions:
|
[tex]P = \sigma T^4[/tex] where P is the total power. [tex]\phi = P/A = \frac{\sigma}{4\pi d^2}T^4[/tex] The asteroid will absorb this radiation and raise its temperature until it is emitting at the same rate as it is absorbing, at which point its temperature wlll remain constant. The question asks you to find that temperature. It is a little tricky. AM |
| Thread Closed |
Similar Threads for: Black body Radiation
|
||||
| Thread | Forum | Replies | ||
| Black Body Radiation | Classical Physics | 2 | ||
| Black body radiation | Introductory Physics Homework | 1 | ||
| Black body radiation, need help | Introductory Physics Homework | 2 | ||
| Black body radiation | Quantum Physics | 5 | ||
| black body radiation | Quantum Physics | 2 | ||