1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Introductory Astronomy Question - function help

  1. Sep 12, 2009 #1
    The question asks to find a new expression for a function, by substituting suitable expressions for the elimination of lambda and T.
    The function is:
    b(x)= h^4 * c^3 * U(sub-lambda) / 2*(kT)^5
    In this case:
    U(sub-lambda)= U(sub-lambda)(lambda,T) - Planck Blackbody Function
    x= lambda*k*T / h*c

    I assume that there is some way to substitute some of the equations into the function - but I am at loss to see how - any help would be appreciated - Thank You
     
  2. jcsd
  3. Sep 15, 2009 #2

    Redbelly98

    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper

    Were you given an expression for Uλ(λ,T)? Perhaps in your text book or lecture notes ... I think the next step would be to substitute that expression into the RHS of your b(x) equation here.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Introductory Astronomy Question - function help
  1. Astronomy Help (Replies: 1)

  2. Introductory Question (Replies: 1)

Loading...