PHYSICS · Single correct · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter
Problem
Star X has its maximum spectral intensity at 600nm, while Star Y peaks at 400nm. Which statement about their apparent colors is most accurate?
(a) Star X will appear bluer than Star Y because a longer peak wavelength indicates a hotter surface.
(b) Star Y will appear green because its peak is at 400nm, near the center of the visible spectrum.
(c) Star X will appear redder than Star Y because its peak lies in the orange portion of the spectrum.
(d) Star Y will appear redder than Star X because it emits more total power per unit area.