Youngs and single slit experiments

Dx · Jun 2, 2003

Hiya!

I have questions that i am hoping someone can confirm my answers to, plz.

1) In youngs double split experiment, if the seperation between the slits decreased wouldnt the distance increase between the interference fringes? I say yes, i used this formula to derive my conclusion. sin[the]= m[lamb] / d. am i correct?

2) In a single slit diffraction experiment, if the width of the slit increases wouldnt the width of the central maximum on a screen increase as well? Is this true, from the pics and what ive read i believe it is but wanted a knowledgeable opinoin on this question

Tom Mattson · Jun 2, 2003

Dx,

Homework problems go in the Homework Help forum, OK? These questions ain't theoretical physics.

Originally posted by Dx
1) In youngs double split experiment, if the seperation between the slits decreased wouldnt the distance increase between the interference fringes? I say yes, i used this formula to derive my conclusion. sin[the]= m[lamb] / d. am i correct?

Yes.

2) In a single slit diffraction experiment, if the width of the slit increases wouldnt the width of the central maximum on a screen increase as well? Is this true, from the pics and what ive read i believe it is but wanted a knowledgeable opinoin on this question

Look at the formula for the minima and try again.

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Youngs and single slit experiments

Dx

Tom Mattson