Radiation

[willow wind]

How to find the temperature of the black screen?

[glacial pelican]

<@&1227987967939838003>

Note for OP

+solved @user1 @user2... 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.

[simple shadow]

I'm getting 420.44

With a calculator

[willow wind]

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

The ans has been obtained from this eqn

[simple shadow]

? I got 500 divided by 2^¼

*1/4

Not multiplied

[willow wind]

ohhh

[simple shadow]

500²-T⁴ = T⁴-0⁴

[simple shadow]

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

[willow wind]

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

[simple shadow]

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

[willow wind]

but idk how temperature of black screen is 500K?

[willow wind]

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

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

[willow wind]

@blazing glen @final lily any idea?

[final lily]

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

[willow wind]

oh okay np

[blazing glen]

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

[simple shadow]

Right?

[willow wind]

ohh okay