Wien's law tells us that the hotter an object, the _____ the peak wavelength of its emitted light. Naim 01:18 Astronomy 101 Wien's law tells us that the hotter an object, the _____ the peak wavelength of its emitted light. a) longer b) more green c) heavier d) shorter e) more constant Answer: d) shorter Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+