Interference/diffraction pattern formed by 2 slits

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SUMMARY

The discussion focuses on calculating the interference and diffraction pattern formed by two slits for light with a wavelength of λ=600nm, positioned 2.0m from a wall. The relationship between slit separation (d) and width (a) is given as d/a=5. Key equations include dsin(theta)=mλ and asin(theta)=mλ, which are essential for determining the angle theta. A specific dark spot is noted at 0.0045m from the center, prompting the need to solve for theta using these parameters.

PREREQUISITES
  • Understanding of wave optics principles, specifically interference and diffraction.
  • Familiarity with the equations for single and double-slit experiments.
  • Knowledge of trigonometric functions as they relate to angles in wave patterns.
  • Basic skills in algebra for solving equations involving variables.
NEXT STEPS
  • Explore the derivation of the double-slit interference formula.
  • Learn how to apply the small angle approximation in wave optics.
  • Investigate the impact of varying slit widths on diffraction patterns.
  • Study the relationship between wavelength and interference patterns in different mediums.
USEFUL FOR

Students studying physics, particularly those focusing on wave optics, as well as educators looking to enhance their understanding of interference patterns in light. This discussion is also beneficial for anyone preparing for exams involving optics calculations.

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Homework Statement



interference/diffraction pattern formed by two slits for light with λ=600nm on a wall L=2.0m from the slits. find a (width) and d (separtation of slits.

Homework Equations



looking at the figure given d/a=5
dsin(theta)=mλ
asin(theta)=mλ

The Attempt at a Solution



so dsin(theta)=5(lambda) and asin(theta)=1λ
also looking at the figure the dark spot appears .0045m from the center point.
How do I solve for theta?
 
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uwbadger17 said:

Homework Statement



interference/diffraction pattern formed by two slits for light with λ=600nm on a wall L=2.0m from the slits. find a (width) and d (separtation of slits.

Homework Equations



looking at the figure given d/a=5
dsin(theta)=mλ
asin(theta)=mλ

The Attempt at a Solution



so dsin(theta)=5(lambda) and asin(theta)=1λ
also looking at the figure the dark spot appears .0045m from the center point.
How do I solve for theta?

Unfortunately we don't have the luxury of being able to "look at the figure given".
 

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