In a Michelson interferometer, a Kr source emitting radiation at 606 nm is used. When one of the mirrors is moved, 948 fringes can be seen. (a) What is the displacement of the mirror? Then another experiment is performed with a He lamp, emitting at 502 nm, with one arm displaced by the same distance. (b) How many fringes are measured in this experiment? (c) For this displacement, how many fringes will be counted, with the He lamp, if the arm with the movable mirror is in a medium of index n = 1.5?
In a Michelson interferometer, a Kr source emitting radiation at 606 nm is used. When one of the mirrors is moved, 948 fringes can be seen. (a) What is the displacement of the mirror? Then another experiment is performed with a He lamp, emitting at 502 nm, with one arm displaced by the same distance. (b) How many fringes are measured in this experiment? (c) For this displacement, how many fringes will be counted, with the He lamp, if the arm with the movable mirror is in a medium of index n = 1.5?
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In a Michelson interferometer, a Kr source emitting radiation at 606 nm is used. When one of the mirrors is moved, 948 fringes can be seen. (a) What is the displacement of the mirror? Then another experiment is performed with a He lamp, emitting at 502 nm, with one arm displaced by the same distance. (b) How many fringes are measured in this experiment? (c) For this displacement, how many fringes will be counted, with the He lamp, if the arm with the movable mirror is in a medium of index n = 1.5?
Expert Solution
Step 1
Part-a
- The wavelength of the Kr source λ0 = 606 nm.
- The number of fringes n = 948.
- The wavelength of the He source λ0 = 502 nm.
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