Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Blundell Thermal Physics
· Problem 23.4
Photons
Physics — Statistical Mechanics · solar-vs-cmb-photon-flux
Problem
What is the ratio of the number of photons from the Sun to the number of CMB photons that irradiate your outstretched hand every second (during the daytime!)?
Browse the problem library