An extremely thin sheet of glass is being inspected at the laboratory. Illuminated by white light at near-normal incidence, the film-like sheet is 0.361 µm thick and has air on both sides. If the glass has a refractive index of 1.66, what wavelength of visible light (in nm) does it reflect most strongly? (The wavelengths of visible light range from 400 to 700 nm.) ??nm
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An extremely thin sheet of glass is being inspected at the laboratory. Illuminated by white light at near-normal incidence, the film-like sheet is 0.361 µm thick and has air on both sides. If the glass has a refractive index of 1.66, what wavelength of visible light (in nm) does it reflect most strongly? (The wavelengths of visible light range from 400 to 700 nm.)
??nm
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- Light travels through air into a second medium which slows the light to a speed of 1.88 x 108 m/s. What is the refractive index of the second medium? Give your answer to 3 significant digits. n=cv c=3.00 x 108 m/s 1f=1do+1di M=−dido M=hihoA beam of initially unpolarized light of intensity 531 W/m^2 passes through two polarizing filters in sequence, emerging from the second filter with an intensity of 175 W/m^2. What is the angle between the axes of the first and second filters? 17.9 degrees 35.7 degrees 55.0 degrees 66.1 degrees2. White light is incident from air onto an equiangular triangle prism at a 40.0° angle with respect to the normal. The prism is composed of crystal that has an index of refraction of 1.40 for red light and 1.45 for violet light. Take nair = 1.00 for all wavelengths. a. What is the angular separation of the red and violet ends of the spectrum within the prism?
- 1. A beam of white light goes from air into the water droplet at an incidence angle of 36.2 degrees. What is the angle between the red (660 nm) and violet (410 nm) parts of the refracted light? 2. At what angle of incidence is light completely polarized after reflection from a surface of water? What is the corresponding angle of refraction? Assume that light is incident from air. The n of water =1.33. 3. What will be the color of a sheet of paper containing red pigment when yellow light shines on it? What will be the color of a sheet of paper containing blue pigment when yellow light shines on it?w9-10 A diamond in air is illuminated with white light. On one particular facet, the angle of incidence is 25.70°. Inside the diamond, red light (λ = 660.0 nm in vacuum) is refracted at 10.88° with respect to the normal; blue light (λ = 470.0 nm in vacuum) is refracted at 10.13°. How would a diamond look if there were no dispersion? a. The diamond would look white. b. The diamond would look red. c. The diamond would look blue. d. The diamond would be clear.5. A narrow beam of composite red and violet light initially in air is incident upon a rectangular block. The indices of refraction regarding the block are; n=1.50 for the red light n=1.54 for the violet light. a. If the incident beam strikes the surface of the block at an angle of a = 65.0°, what it the angular separation of the red and violet light as it exits the block, going back into air? b. Between what two angles of incidence a will only one of the colors of light emerge through the top of the block? State which color makes it through (Red or Violet).
- please answer both please4. Figure CQ22.4 shows light from material A with index of refraction nд entering materials B and C with indices of refraction NB and nc Rank the three indices of refraction from largest to smallest. a. nд, nB , nc b. nB, nc, NA c. nc, WA 9 nB d. nB NA, 2 nc e. nc, nB, NA Figure CQ22.4 NA ng 55.0° i 55.0° nc1. A flashlight held 1.3 m above the surface of a water tank shines a beam of light on the water (index of refraction n 1.33). The light hits the water 2.7 m away from the edge of the tank, where the flashlight is held. The water tank is 2.1 m deep. (a) What is the incident angle relative to the normal? (b) What is the transmitted angle relative to the normal? (c) Where does the light ray hit the bottom of the water tank, mea- sured from the edge of the tank where the flashlight is held? light ray 2.7 m d=? = water tank 1.3 m 2.1 m
- The index of refraction for blue light of wavelength 434 nm in a glass sample is 1.650 and for red light of wavelength 695 nm it is 1.592. If a beam containing these two colors has an angle of incidence with the glass of 30.0°, what is the angle between the two beams inside the glass? Additional Materials ReadingA glass sheet measuring 15.0 cmcm ×× 29.0 cmcm is covered by a very thin opaque coating. In the middle of this sheet is a thin, straight scratch 0.00125 mmmm thick, as shown in (Figure 1). The sheet is totally immersed beneath the surface of a liquid having an index of refraction of 1.41. Monochromatic light strikes the sheet perpendicular to its surface and passes through the scratch. A screen is placed under the liquid a distance 32.0 cmcm away from the sheet and parallel to it. You observe that the first dark fringes on either side of the central bright fringe on this screen are 23.0 cmcm apart. What is the wavelength of the light in air? Express your answer in nanometers.