A double-slit interference pattern is observed on a screen with the intensity graph. Points A, B, C, D, and E are bright fringes. Points F, G, H, I, J, and K are dark fringes. The wavelength of the green light is 500 nm. The distance between the two slits is 0.64 mm, and the distance between the screen and the slit is 2.1 m. What is the distance between fringes C and E, in mm? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement. Light Generator F G A (K B C 10 D E Intensity

A double-slit interference pattern is observed on a screen with the intensity graph. Points A, B, C, D, and E are bright fringes. Points F, G, H, I, J, and K are dark fringes. The wavelength of the green light is 500 nm. The distance between the two slits is 0.64 mm, and the distance between the screen and the slit is 2.1 m. What is the distance between fringes C and E, in mm? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement. Light Generator F G A (K B C 10 D E Intensity