Math and Arithmetic
How many photons are there in one lux?
Asked in Japan in WW2
How many photons does it take to make 1 atom of hydrogen?
How many photons are there with a wavelength of 6000 angstroms?
Who is baby lux that's always around one direction?
Asked in Physics, X-Ray, The Difference Between
What is the difference between a hard beam and a soft beam?
A hard beam is one that contains a greater number of high energy photons than low energy photons. A soft beam is one that contains a greater number of low energy photons that high energy photons. During the filtration of a heterogenous beam (one that contains photons with different energies), low energy photons are removed from the beam, effectively "hardening" it.