In particle physics, this inequality permits a qualitative understanding of virtual particles which carry momentum, exchange by which and with real particles, is responsible for the creation of all known fundamental forces (more accurately known as fundamental interactions). Virtual photons (which are simply lowest quantum mechanical energy state of photons) are also responsible for electrostatic interaction between electric charges (which results in Coulomb law), for spontaneous radiative decay of exited atomic and nuclear states, for the Casimir force, for van der Waals bond forces and some other observable phenomena. COUNT 3
QSN1 What are simply lowest quantum mechanical energy state of photons? ANS1 Virtual photons QSN2 What is responsible for electrostatic interaction between electric charges? ANS2 Virtual photons QSN3 What results in Coulomb law? ANS3 electrostatic interaction between electric charges