Temperatures of two stars are in ratio 3:2. If wavelength of maximum intensity of first body is 4000 Å, what is corresponding wavelength of second body?
(a) 9000 Å
(b) 6000 Å
(c) 2000 Å
(d) 8000 Å
I got this question in a job interview.
My doubt is from Thermal Expansion topic in division Thermal Properties of Matter of Engineering Physics I