anonymous
  • anonymous
We never learned this!!! I'll give a medal to whoever can help me!!! I've read and re-read my lessons like 7 times it's not there! The paths of the light waves that interfere to cause first-order lines A. differ in length by the wavelength of the light. B. are parallel lines. C. are the same length. D. differ in length by one-half of the wavelength of the light.
Physics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
@Mashy Help Me!!! *Insert Anime crying* ='(
anonymous
  • anonymous
well anyone works but still
anonymous
  • anonymous
you need to know what causes those bright and dark fringes in interference.. can you tell me why you get interference in the first place?

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anonymous
  • anonymous
the interference occurs when waves either cancel each other out or reinforce each other
anonymous
  • anonymous
and when do they reinforce each other? i mean what condition?
anonymous
  • anonymous
Two coherent waves traveling along two different paths to the same point will interfere destructively if there is a difference in distance traveled that is equivalent to a half number of wavelengths. And two coherent waves traveling along two different paths to the same point will interfere constructively if there is a difference in distance traveled that is equivalent to a whole number of wavelengths.
anonymous
  • anonymous
I that out of this site: http://www.physicsclassroom.com/Class/light/U12l3e.cfm (My lessons aren't that specific)
anonymous
  • anonymous
there you go.. so now try to answer the questoin :P
anonymous
  • anonymous
So it would be A
anonymous
  • anonymous
what about C/?? why can't C be the answer?
anonymous
  • anonymous
oh yeah. oops
anonymous
  • anonymous
no .. answer me.. think !!
anonymous
  • anonymous
A little pushy aren't we? Okay. Fine. It COULD be C but if they were the same length then they would most likely cancel each other out. (I've learned for several years in a row that usually when something(s) are the same in measurement they tend to cancel each other out.)
anonymous
  • anonymous
So I still wanna stick with A even though I'm still considering C as a small possibility
anonymous
  • anonymous
Are you still there @Mashy ?
anonymous
  • anonymous
A. differ in length by the wavelength of the light.

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