Young's experiment is performed with light from excited helium atoms with a wavelengthof 502 nm. Fringes are carefully measured on a screen 1.20 meters away from the doubleslit, and the distance from the central fringe to the 3rd fringe (m=3) is found to be 10.6mm. What is the separation of the two slits? (Give your answer in micrometers.)Answer:Two slits spaced 0.15 mm apart are placed 75.0 cm from a screen. An interference patternis observed on the screen with adjacent bright fringes spaced 2.75 mm apart. What is thewavelength of the light? (Give your answer in nm.)Answer:Coherent light that contains two wavelengths, 660 nm (red) and 470 nm (blue), passesthrough two narrow slits that are separated by 0.300 mm. Their interference pattern isobserved on a screen 4.00 m from the slits. What is the distance on the screen betweenthe first order bright fringes for the two wavelengths? (Give your answer in mm.)Answer:Coherent light with wavelength 600 nm passes through two very narrow slits and theinterference pattern is displayed on a screen 0.80 m from the slits. 13 bright fringes areobserved with a spacing of 4.00 cm between the center of the outside fringes. What is thespacing between the two slits? (Give your answer in micrometers.)Answer:

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