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Light waves in interference

  • Thread starter CINA
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  • #1
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Homework Statement



Light of wavelength 500 nm illuminates a double slit, and the interference pattern is observed on the screen. At the position of the m = 2 bright fringe, how much farther is it to the farther slit than to the nearer slit?


Homework Equations



[tex]\delta= r_{2}-r_{1}=dsin(\theta)[/tex]
[tex]dsin(\theta_{bright})=m\lambda[/tex]


The Attempt at a Solution



Am I wrong in thinking that it is impossible to get a specific solution to this problem? Without being given the distance the slits are apart, d, or the theta angle the problem can only be solved generally, correct?
 

Answers and Replies

  • #2
Delphi51
Homework Helper
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Wouldn't it just be two wavelengths?
 

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