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Secure I httpsllsession.masteringphysics.com/myct/itemview?offsetsnext&assignmentProblemID; 72930823 HY2054 College Physics 2 Spring 2017 omework9 Chapter 24 The Wave Natu Item 7 Item 7 Part A A double-slit experiment is performed with light of What will the fringe spacing be if the light is changed to a wavelength of 400 nm wavelength 600 nm The bright interference fringes are spaced 18 mm apart on the viewing Express your answer using two significant figures. 758 Submit MY Answers Gbce Up incorrect. Try Again: 4 attempts remaining

Explanation / Answer

From the given data:

  let y= the space between two successive similar fringes
W = wavelength
r = distance between two screens
d = the space between the two slits
so the equation is y = wr/d
it's clear that Y is directly proprthional with W
so 600/400 = 1.8/y
y = 1.2

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