Question

Constant Two thin parallel slits that are 1.24x10-2 mm apart are illuminated by a laser beam of wavelength 582 nm Part A On a very large distant screen, what is the total number of bright fringes (those indicating complete constructive interference), including the central fringe and those on both sides of it? Solve this problem without calculating all the angles! (Hint: What is the largest that sin can be? What does this tell you is the largest value of m?) IVO AE ? Submit Request Answer Part B At what angle, relative to the original direction of the beam, will the fringe that is most distant from the central bright fringe occur? EVO ALO ? Submit Request Answer Provide Feedback Next

Answer 1

(a) a asine =nX = 1:24 X10-2 x103 sino xa 582x109 => n = 21.305 So, approx 21 we will formed side so both sides = (2x2))+1 43 can say finger at on (b) sino = DA => 0= sin (na) 203 o = = sin 21 x 5:52 x10 1:24 xloes o=80 degree

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