The equation for photon energy is
E=hc/λ
where E is photon energy, h is the Planck constant, c is the speed of light in vacuum and λ is the photon's wavelength.
普朗克常数×光子频率
ε=hv ,其中h为普朗克常量:6.626196 X 10^-34 , v 是粒子速度。对于光子而言v = c 光速,299792458m/s
乘起来就是1.98 x 10^-25, 单位应该是焦
LS说的是反推式了,这条式子是用来光子能量来求光子质量,而不是已知光子质量来求光子能量。
E=MC^2,当然是光速的平方喽