Solving Optics Diffraction Questions: Orders & Intensity Pattern

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SUMMARY

This discussion focuses on solving optics diffraction questions related to a double slit experiment. The slits have a width of 0.140 mm and a center-to-center distance of 0.840 mm. The missing orders depend on the wavelength of light used, and the intensity of orders m=1 to m=3 can be calculated relative to the zeroth-order maximum using diffraction equations. Additionally, the discussion includes sketching the intensity pattern for seven equally spaced slits with a d/b ratio of 3, requiring labeling of points on the x-axis with corresponding beta and gamma values.

PREREQUISITES
  • Understanding of diffraction principles in optics
  • Familiarity with the double slit experiment
  • Knowledge of intensity calculations in wave optics
  • Ability to sketch and interpret intensity patterns
NEXT STEPS
  • Review the equations for single and double slit diffraction
  • Learn how to calculate missing orders in diffraction patterns
  • Study intensity distribution in multi-slit diffraction scenarios
  • Explore the concepts of beta and gamma in diffraction patterns
USEFUL FOR

Students of physics, optics researchers, and educators seeking to deepen their understanding of diffraction patterns and intensity calculations in multi-slit experiments.

forwsl
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I have two questions here,

1. The two slits of a double slit each have a width of 0.140 mm and a distance between centers of 0.840 mm,
(a) What orders are missing?
(b) What is the approximate intensity of orders m=1 to m=3, relative to the zeroth-order maximum?

2. Sketch the intensity pattern for seven equally spaced slits having d/b = 3, Label points on the x-axis with the corresponding values of beta and gamma.


For the first question, doesn't the missing orders depend on the wavelength? I don't have any clue on what equation to use.
And for the second, I don't have any idea at all.
Please help me in solving the questions, thanks!
 
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Use the equations that deal with diffraction from slits. Your textbook or class notes should have these.
 

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