Physics
Modern Physics
Gamma Ray
XII
⚡ Quick Summary
Gamma rays are high-energy electromagnetic radiation.
E = hf (energy of a photon)
Gamma rays are mentioned within the context of physics.
Luminosity
XII
⚡ Quick Summary
Total amount of energy emitted by a star or other celestial object.
L = 4πr^2σT^4
The total amount of energy emitted by a star or other celestial object.
Luminous Intensity
XII
⚡ Quick Summary
Power emitted by a light source in a particular direction.
Iv = dΦv / dΩ
Power emitted by a light source in a particular direction.
Photoelectric Effect
XII
⚡ Quick Summary
The emission of electrons when light hits a material.
KE = hf - φ
The emission of electrons when light hits a material.