# Michelson interferometer

can someone explain to me the speed of light to the mirror and back from the mirror before reaching the telescope ?? please

Drakkith
Staff Emeritus
I'm sorry, I don't understand what you are asking. Could you elaborate your question a bit more?

sorry i shoudl have elaborated more , i mean why the speed of light from the half painted mirror to one of the two mirrors is c-v and c+v from the mirror to the painted mirror??

Redbelly98
Staff Emeritus