What is the minimum (non-zero) thickness of a benzene (n = 1.501) thin film that will result in constructive interference when viewed at normal incidence and illuminated with orange light (vacuum = 615 nm)? A glass slide (ng = 1.620) supports the thin film. O 51.0 nm O 306 nm O 76.0 nm O 204 nm O 102 nmRed light of wavelength 600.0 nm is incident on a grating. If the separation between the slits is 5.0 x 10 3 m, at what angle does the first principal maximum occur? O 0.6 x 10-2rad O 3.6 x 10-2 rad O 1.2 x 10 2rad O 0.8 x 10-2 rad O 5.0 x 10 2 radWhite light is passed through a diffraction grating that has 2.50 x 10" lines/m. On each side of the white central maximum, a spectrum of colors is observed. What is the wavelength of the light observed at an angle of 7.00 in the first-order bright fringes? O 668 nm O 632 nm O 487 nm O 589 nm O 731 nmA double slit is illuminated with monochromatic light of wavelength 6.11 x 102nm. The m = 0 and m = 1 bright fringes are separated by 1.8 cm on a screen which is located 3.5 m from the slits. What is the separation between the slits? O 8.0 x 10-5m O 1.2 x 10-4m O 1.6 x 10-4m O 2.4 x 10-4m O 4.0 x 10-3m