- #1

cwolfx2

- 8

- 0

## Homework Statement

What is the temperature of a star if the flux at 450 nm is measured to be 1.3 times the flux at 650 nm.

## Homework Equations

I tried to use the equation Flux =

__2πhv__

^{3}/c^{2}

e

^{x}-1

x= hv/kt

making 2 of the equations equal each other and solve for T. However being out of practice for months now i do not remember what e represents and how to solve for an exponent.

Though I imagine I may have the wrong equation and not sure if i need to or how to incorporate the wavelengths.