Mirror M₁ in the figure below is moved through a displacement AL. During this displacement, 248 fringe reversals (formation of successive dark or bright bands) are counted. The light being used has awavelength of 631.4 nm. Calculate the displacement AL.μmA single ray of light issplit into two rays bymirror Mo, which iscalled a beam splitter.TelescopeAs M₁ is moved, aninterferencepattern changes inthe field of view.LightsourceL₂M₂Mo4₁The path difference betweenthe two rays is varied with theadjustable mirror M₁.M₁

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Answered: Mirror M₁ in the figure below is moved…

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