Explain the construction and working principle of Michelson’s interferometer.
Answers
Michelson’s Interferometer consists of an optical device which splits a beam of light in two – known as Beam Splitter. Each beam is then reflected back to the Beam Splitter which combines their amplitudes using Superposition Principle (net response of two or more stimuli is the sum of the individual responses). The interference pattern that is not reflected back to the source is directed to a photoelectric detector.
Invented by Alfred Abraham Michelson (1852 - 1931), the American physicist, the Michelson Interferometer is used in the field of fibre optics, astronomy, oceanography, seismology etc.
Answer:
a light wave is divided into two waves by the division of amplitude. the two waves are sent in defferent direction against the plane mirrors and then brought together to form interference fringes.