Problem 1: Use Wolfram Alpha to calculate the most probable wavelengths emitted by the surface of the Earth (T=300 K) and the Sun (T=5778 K) using one or more of the laws discussed on the previous page of this lesson. What is the meaning of the "most probable wavelength"?
Problem 2: Calculate the energy flux (power density) emitted by those Earth's and Sun's surfaces using Stefan-Boltzmann Law.
Problem 3: Apply the Inverse Square Law to determine the "extraterrestrial solar flux" at the Earth using the Sun's emitted flux found in Question 2.
Problem 4: What is the meaning of "extraterrestrial solar flux" and how is it further transformed within the Earth's atmosphere?