1. In a two-slit experiment, the distance between the slits and the screen is 1.10 m, and the distance between the slits is 0.0400 mm. If the second order bright fringe is measured to be 4.20 cm from the centerline on the screen, what is the wavelength of light? Include the number of the formula from the formula sheet modules 1-4 you used O 401 nm, formula 8 O 381 nm, formula 5 O 381 nm, formula 3 O 200. nm, formula 5 O 401 nm, formula 5 O 763 nm, formula 5 O 763 nm, formula 3 620. nm, formula 8 2. A student makes a microscope using an objective lens and an eyepiece. If she moves the lenses closer together, does the microscope's magnification increase or decrease? The magnification of a microscope is ME-(L*25cm)/(fofe) so decreasing the tube length L (while leaving fe the same) would mentain the magnification constant. O The magnification of a microscope is M=-(L*25cm)/(fofe) so decreasing the tube length L (while leaving fo the same) would decrease the magnification. The magnification of a microscope is M=-(L*25cm)/(fofe) so decreasing the tube length L (while leaving fo the same) would increase the magnification. The magnification of a microscope is M=-(fofe)/(L*25cm) so decreasing the tube length L (while leaving fo the same) would decrease the magnification. The magnification of a microscope is M=-(fofe)/(Lx25cm) so decreasing the tube length L (while leaving fe the same) would increase the magnification. 3. Olga is nearsighted and cannot see things beyond 90. cm (with 2 sig.fig) from her eyes. What is the refractive power of the contact lenses that will enable her to comfortably see distant buildings clearly? Which characteristic of the eye lens, Pmin Of Pmax, do you need to use in order to determine your answer? O -1.1 diopters, Pmax O -1.7 diopters, Pmin O -2.2 diopters, Pmin O +1.1 diopters, Pmin O -1.1 diopters, Pmin O -2.2 diopters, Pmax