Part a: Blackbody Radiation Start by opening the Phet blackbody simulator (httpsphetcolorado.edu:'simsthtmli'blackbodyspectrumllatesttblackbody- spectrum_en.html) web page. The y-axis indicates the amount of radiation emitted by the object for a given wavelength. Don't wony about the specic units here; we are interested in the relative emission for different wavelengths or for objects at other temperatures. The vertical rainbow indicates the visible wavelengths. To increase the temperature, move the slider up and down. The + and ~ magnifying glasses zoom in on the x or yaxis. Notice that the yaxis buttons increase or decrease the range of the yaxis by an order ofmagnitude (multiply or divide by 10) for every two clicks, while the xaxis buttons doubte or hatve the xaxis range for every click. Comparing EM emission from the sun and the Earth 1. Use the slider to set the temperature closest to that of the sun (5800 K. the actual temperature of the sun is more like 57?8 K). Estimate the wavelength of maximum emission from the plot. 2. What type of EM radiation is this? 3. How does this compare with the value calculated in the Lecture? 4. Change the temperature to 250 K, approximating Earth without an atmosphere (which is actually ~ 255K but we are limited in the increments we can put into the simulator. What happens to the curve? Why do you think this happens