Coherent light of wavelength 500 nm illuminates a vertical single slit, that has an initial slit width of 50µm. (a) Briefly describe the form of the interference pattern observed on a screen placed 2 m downstream of the slit. (b) Calculate the lateral offset of the second order minimum in the interference pattern. (c) The slit width is doubled to 100 µm. What changes would you expect in the interference pattern? (d) Then an adjacent vertical slit of 100 µm width is added, with a slit separation of 300 µm. What further changes would you expect in the interference pattern?
Coherent light of wavelength 500 nm illuminates a vertical single slit, that has an initial slit width of 50µm. (a) Briefly describe the form of the interference pattern observed on a screen placed 2 m downstream of the slit. (b) Calculate the lateral offset of the second order minimum in the interference pattern. (c) The slit width is doubled to 100 µm. What changes would you expect in the interference pattern? (d) Then an adjacent vertical slit of 100 µm width is added, with a slit separation of 300 µm. What further changes would you expect in the interference pattern?
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Transcribed Image Text:3. Coherent light of wavelength 500 nm illuminates a vertical single slit, that has an
initial slit width of 50µm.
(a) Briefly describe the form of the interference pattern observed on a screen
placed 2m downstream of the slit.
(b) Calculate the lateral offset of the second order minimum in the interference
pattern.
(c) The slit width is doubled to 100 µm. What changes would you expect in the
interference pattern?
(d) Then an adjacent vertical slit of 100 µm width is added, with a slit separation
of 300 um. What further changes would you expect in the interference pattern?
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