Monochromatic, coherent light is used in a Michelson Interferometer. One of the movable mirrors is shifted by 1.625 10-m. You see 50 pairs of bright and dark fringes passing the observation screen (or detector). What is the wavelength of the light? Please round the result to a whole number.

icon
Related questions
Question

could you please explain the formula -- lambda = 2d/n 
correct answer is 325 or 650?

Monochromatic, coherent light is used in a Michelson Interferometer. One of the movable
mirrors is shifted by 1.625 - 10 m. You see 50 pairs of bright and dark fringes passing the
observation screen (or detector). What is the wavelength of the light? Please round the result to
a whole number.
Transcribed Image Text:Monochromatic, coherent light is used in a Michelson Interferometer. One of the movable mirrors is shifted by 1.625 - 10 m. You see 50 pairs of bright and dark fringes passing the observation screen (or detector). What is the wavelength of the light? Please round the result to a whole number.
Expert Solution
Step 1: Derived from formula

2 d sin thetaequals N lambda

Here theta equals 90° for Michelson interferometer

So it becomes

2 d equals N lambda     


steps

Step by step

Solved in 3 steps with 12 images

Blurred answer