3. Suppose the two glass plates in the figure are two m

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Need help on part b, the correct answers are a) 1.40mm b) 48.4 degrees

3. Suppose the two glass plates in the figure are two microscope slides 10.0 cm long. At one end
they are in contact; at the other end they are separated by a piece of paper 0.0180 mm thick. (a)
What is the spacing of the interference fringes seen by reflection? Assume monochromatic light
with a wavelength in air of Ao = 500 nm. (b) If the slides instead had oil between them with n =
1.53 then what would be the number of fringes visible? Assume the same paper.
do=500 hm
h=0.0200 mm
= 10.0 cm
Transcribed Image Text:3. Suppose the two glass plates in the figure are two microscope slides 10.0 cm long. At one end they are in contact; at the other end they are separated by a piece of paper 0.0180 mm thick. (a) What is the spacing of the interference fringes seen by reflection? Assume monochromatic light with a wavelength in air of Ao = 500 nm. (b) If the slides instead had oil between them with n = 1.53 then what would be the number of fringes visible? Assume the same paper. do=500 hm h=0.0200 mm = 10.0 cm
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