(a) Young's double-slit experiment is performed with 550-nm light and a distance of 2.00 m between the slits and the screen. The tenth interference minimum is observed 7.90 mm from the central maximum. Determine the spacing of the slits (in mm). :mm (b) What If? What are the smallest and largest wavelengths of visible light that will also produce interference minima at this location? (Give your answers, in nm, to at least three significant figures. Assume the visible light spectrum ranges from 400 nm to 700 nm.) smallest wavelength :l nm largest wavelength nm Page No. Date: Fringe width Consider a narrow monochromatic Source s and two pin holes As B P equidistance from s : PQ = 21 - d12 PR = M + d/2 A R B ( D -) ( OR FOR) (AP - AP ) - 4 x x y d /2 for stable of interference BP RAPID BP - AP = and Path Difference = xd D Plane Difference . RT ( ad d D1P-3 2 For largest wavelength : A = 10. 4 x 156 ( an - 1 ) taking n= 8 for largest wavelength A = 10 .4 x 156 15 1= 693. 33 mm A 693 mmLP - 2 bur dark fringe, Path difference B - = (2 n t1 ) A where N= 0, 1, 2 -.. OY ( an - 1) 2, , where nallz. .h 2 n - 1 ) where, re = fringe A width 187 - 1 ) dD