Summary























kw4 22.q.34
Stars emit light according to their temperatures. Which star would be the hottest?
A. red
B. yellow
C. white
D. blue
Answer























gc6 27.9
What is the peak wavelength of the EM radiation issuing from the pupil of the human eye, assuming an eye temperature of 37°C?
A. 9.35 µm
B. 2.90 µm
C. 1068 nm
D. 78.4 µm
Answer























 



D. blue
The bluer the light, the hotter the object! An object that glows blue or bluish-white is hotter than an object that glows white.




























 



A. 9.35 µm