Radiation - iTeachChem

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I

iTeachChem Helper•5/1/25, 9:12 AM

@Gyro Gearloose

iTeachChem Helper

I

iTeachChem Helper•5/1/25, 9:12 AM

Note for OP

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to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.

Percy

PPercy How to find the temperature of the black screen?

Opt

O

Opt•5/1/25, 9:53 AM

I'm getting 420.44

Opt

O

Opt•5/1/25, 9:53 AM

With a calculator

Opt

OOpt I'm getting 420.44

Percy

P

PercyOP•5/1/25, 10:32 AM

The answer is (2)^1/4 x 500 which is approx 600K

Percy

P

PercyOP•5/1/25, 10:32 AM

The ans has been obtained from this eqn

Percy

PPercy The answer is (2)^1/4 x 500 which is approx 600K

Opt

O

Opt•5/1/25, 10:33 AM

? I got 500 divided by 2^¼

Opt

O

Opt•5/1/25, 10:33 AM

*1/4

Opt

O

Opt•5/1/25, 10:33 AM

Not multiplied

Percy

PPercy The ans has been obtained from this eqn

Percy

P

PercyOP•5/1/25, 10:33 AM

Opt

OOpt ? I got 500 divided by 2^¼

Percy

P

PercyOP•5/1/25, 10:33 AM

ohhh

Opt

O

Opt•5/1/25, 10:33 AM

500²-T⁴ = T⁴-0⁴

Percy

PPercy Click to see attachment

Opt

O

Opt•5/1/25, 10:34 AM

I don't understand why they've taken it twice

Percy

PPercy Click to see attachment

Percy

P

PercyOP•5/1/25, 10:35 AM

In the LHS of this eqn, the first term is heat given by spaceship and the second term is heat given by black screen

Opt

O

Opt•5/1/25, 10:35 AM

Ok, are they assuming that radiation takes place back to only the space station?

Percy

PPercy In the LHS of this eqn, the first term is heat given by spaceship and the second...

Percy

P

PercyOP•5/1/25, 10:35 AM

but idk how temperature of black screen is 500K?

Opt

OOpt Ok, are they assuming that radiation takes place back to only the space station?

Percy

P

PercyOP•5/1/25, 10:36 AM

I think they have assumed spaceship and black screen as surroundings and the black shell as the body

Percy

P

PercyOP•5/1/25, 10:37 AM

and since they are asking for temp in steady state, rate of emission is equal to rate of absorption

Percy

P

PercyOP•5/1/25, 1:40 PM

@SirLancelotDuLac @Gamertug any idea?

Percy

PPercy @SirLancelotDuLac @Gamertug any idea?

Gamertug

G

Gamertug•5/1/25, 1:47 PM

my everything except mechanics and electric thing is weak , no idea

Gamertug

GGamertug my everything except mechanics and electric thing is weak , no idea

Percy

P

PercyOP•5/1/25, 2:45 PM

oh okay np

Percy

PPercy @SirLancelotDuLac @Gamertug any idea?

SirLancelotDuLac

S

SirLancelotDuLac•5/2/25, 2:04 AM

No clue, I'm getting 500/2^0.25.

SirLancelotDuLac

SSirLancelotDuLac No clue, I'm getting 500/2^0.25.

Opt

O

Opt•5/2/25, 5:01 AM

Right?

SirLancelotDuLac

SSirLancelotDuLac No clue, I'm getting 500/2^0.25.

Percy

P

PercyOP•5/2/25, 7:19 AM

ohh okay

Percy

PPercy How to find the temperature of the black screen?

iTeachChem

I

iTeachChem•5/25/25, 3:38 AM