9. Suppose the interference pattern shown in the figure below is produced by monochromatic light passing through a single slit, that has a width 120 µm, and onto a screen 2.35 m away. What is the wavelength of light if the distance between the dashed lines is 9.40 cm? nm 19 oof19 oof19 oom 19 oof19

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

32. Light of wavelength 630 nm is incident on a long, narrow slit. Determine the angular deflection of the first diffraction minimum if the slit width is (a) 0.020 mm, (b) 0.20 mm, and (c) 2.0 mm.

4. What is the wavelength of light falling on double slits separated by 2.00 µm if the second- order maximum is at an angle of 60.0°? 5. Calculate the distance between two adjacent fringes for 633-nm light falling on double slits separated by 0.0800 mm, located 3.00 m from a screen.