Light of 600 nm wavelength passes through a double slit and forms interference fringes on a screen 1.2 m away. If the slits are 0.2 mm apart, what is the distance between the zeroth and a third order minimum? OA. 1.08 cm B.3.12 cm Ⓒc. 2.11 cm OD.0.90 cm QUESTION 3

2. Red laser light (X=680 nm) is incident on two narrow, closely-spaced slits. The resulting pattern of bright and dark fringes is projected on a screen, and the centermost bright fringes are seperated by 2.0 cm. If the red laser is replaced with a green (A=500 nm) one, how would the spacing of the centermost fringes change? A. The centermost bright fringes will remain 2.0 cm apart B. The centermost bright fringes will get closer together C. The centermost bright fringes will get farther apart D. No bright fringes would be visible

Light of wavelength 632 nm passes through a slit 7.00 x 10-6 m wide and falls on a screen that is 2.19 m away. What is the distance on the screen from the center of the central bright fringe to the third dark fringe on either side? Number i Units

Light of wavelength 575 nm falls on a double slit, and the first bright fringe of the interference pattern is seen at an angle of 13.0° from the central maximum. Find the separation between the slits. μm