With the help of Michelson Morley Interferometer simulation I have tried to explain these basic concepts….
Rotation of Interferometer
Michelson Morley experiment
Semisilvered glass plate role
distance of two mirrors from semi silvered glass plate and its effect
time difference between two rays
path difference between two rays and Interference pattern
ether medium properties
change in speed of light
change in fringe shift is due to change in path
path difference opposite at 90 degree from initial case.