Amichelson interferometer uses red light with a wavelength of 656.45 nm from a hydrogen discharge lamp. part a how many bright-dark-bright fringe shifts are observed if mirror m2 is moved 1.7000 cm ? express your answer using five significant figures.

51793 bright-dark-bright fringe shifts are observed when the mirror M2 moves through 1.7cm

Explanation:

The number of maxima appearing when the mirror M moves through distance \Delta L is given as follows,

Here,

= is the distance moved by the mirror M

is the wavelenght of the light used.

= 0.017m

Therefore, 51793 bright-dark-bright fringe shifts are observed when the mirror M2 moves through 1.7

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