You cool a blackbody to half its original temperature. How does its spectrum change? Question 2 options: power emitted is 1/16 times as high; peak emission wavelength is 1/2 as long power emitted is 1/16 times as high; peak emission wavelength is 2 times as long power emitted is 1/4 times as high; peak emission wavelength is 2 times as long power emitted is 1/4 times as high; peak emission wavelength is 1/2 as long