Question on young's double experiment

  • Thread starter SAINATHAN
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  • #1
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Main Question or Discussion Point

why we have to kept opaqe screen parllel to the two slits in young's double slit experiment?
 

Answers and Replies

  • #2
tiny-tim
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Welcome to PF!

Hi SAINATHAN! Welcome to PF! :wink:

We don't have to …

but it makes the maths easier, and the picture more symmetric and prettier. :smile:
 
  • #3
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If the rest of teh screen wasn't opaque, but was see-thru, you would really no longer have two slits but just ahve a sheet of transparent material with two slits in it. This would result in the fringes and light spots being obscured by all the other light getting through,
 

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