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a The Expert TAIHuman-1 x Secure https://usq40pa.theexpertta.com /common/TakeTu alAssignment aspx Class Managemen Help Homework 13 Begin Date: 4 7/2017 10:00:00 AM Due Date: 4 21/2017 11:39:00 PM End Date: 4/22/20 59:00 PM (10%) Problem 9: A light with length L-685 nin falls on a pair of closely separated slits. The first dark tringe of the interterence pattern is at an angle 4.75 degrees from the central maximum. Assignment Status Click here for detailed view Problem Status 50% Part (a) Express the separation between the slits in terms of e and i. 1 Completed 2 Partial 3 Completed d- 0.83 4 Completed sino coso tano 7 8 9 HoME. Completed cotano asin() acos() 7 Completed atan0 acotanK) sinh() 8 Completed cosho tanho Lootanho Degrees Radian 10 Completed Feedback deductiot per feedback. Submission History Answer Hints Feedba 0.83 Totals javascript:void(0): Otheexpertta.com Grade Summary Potential Submissions. Attempt per attempt detailed Totals 9:26 PM

Explanation / Answer

a)

for first dark fringe,

d*sin(theta) = lamda/2

d = lamda/(2*sin(theta))

b) d = 685*10^-9/(2*sin(4.75))

= 4.14*10^-6 m or 4.14 micro m

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