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    hi ppl..cud sum1 plz help me with this question? its about the diffraction of waves (i hate waves...lol) ok heres the question:

    a beam of microwaves is directed at two slits in a metal sheet (the pic is attached). P and R are two adjacent positions where a microwave detector would register readings. Use the diagram to determine the wavelenth of the microwaves.

    ( i was doing 420-442 to get the wavelength but i dont think its that easy..cud sum1 plz explain how to do it???
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    i think it is that easy. constructive interference happens when the coherent waves are 'n' wavelenths apart. As p and r are adjascent, the distances have a difference of one wavelenth, so the wavelength is 22mm... methinks
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    hi thanx for replying tishysquishy! r u sure its that easy? i get so confused will all this wave stuff..lol..but if u say so thanx once again
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    (Original post by nemo199)
    hi thanx for replying tishysquishy! r u sure its that easy? i get so confused will all this wave stuff..lol..but if u say so thanx once again
    it is that easy - should only be a 1 or max two mark question...how much is it worth?
 
 
 
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