astronomy -please

Question

?-The questions in this homework quiz all refer to the following graph:

http://www.up-00.com/VERzSCdj

 

It shows a black body spectrum for an imaginary star. (In reality, while real stars do emit radiation that is close to that of a blackbody, their spectra are not nearly as "clean" as the one shown here.)

What is the wavelength λmax , in μm, at which the maximum relative intensity occurs?

 

?- What is the value of the relative intensity at the wavelength you found in the previous question?

Answer 1

Looks like the maximum relative intensity of this star occurs at the wavelength of 1μm, and the intensity at this wavelength is about 3.15.