Will a black blob and a white blob glow with the same intensity at 3000 Kelvin?

AI Thread Summary
At 3000 Kelvin, a black blob will glow brighter than a white blob of the same size. This is due to the black blob's ability to absorb and emit more radiation compared to the reflective properties of the white blob. The intensity of radiation emitted by an object at a given temperature does not depend on its color. The discussion emphasizes the importance of understanding the physics behind thermal radiation rather than relying on polling for answers. Ultimately, the conclusion is that the black blob will indeed emit more intense radiation.
shmijda
Messages
23
Reaction score
0

Homework Statement


If a black blob and a white blob of the same size are each heated to 3000 Kelvin, the black blob will glow brighter.Question 11 options:
True
False

Homework Equations


none

The Attempt at a Solution


white because it reflects all incident rays?
 
Physics news on Phys.org
Once again, I say to you, science is not a democracy. Polling for answer is very much the wrong way to go about it.

If you know that an object is at 3000 degrees K, do you need to know anything else to know the intensity of its radiation?
 
Sorry about the polling, I promptly deleted it. I think that intensity of radiation does not depend on color?
 
shmijda said:
Sorry about the polling, I promptly deleted it. I think that intensity of radiation does not depend on color?
Scratch that I figured it out thank you
 
Thread 'Confusion regarding a chemical kinetics problem'
TL;DR Summary: cannot find out error in solution proposed. [![question with rate laws][1]][1] Now the rate law for the reaction (i.e reaction rate) can be written as: $$ R= k[N_2O_5] $$ my main question is, WHAT is this reaction equal to? what I mean here is, whether $$k[N_2O_5]= -d[N_2O_5]/dt$$ or is it $$k[N_2O_5]= -1/2 \frac{d}{dt} [N_2O_5] $$ ? The latter seems to be more apt, as the reaction rate must be -1/2 (disappearance rate of N2O5), which adheres to the stoichiometry of the...
I don't get how to argue it. i can prove: evolution is the ability to adapt, whether it's progression or regression from some point of view, so if evolution is not constant then animal generations couldn`t stay alive for a big amount of time because when climate is changing this generations die. but they dont. so evolution is constant. but its not an argument, right? how to fing arguments when i only prove it.. analytically, i guess it called that (this is indirectly related to biology, im...
Back
Top