The answer is C, but how? Object Lens Point A near f ar a. Between the...
I dont understand thin film interference. Thanks in advance n-1.00 n-1.33 n=1 50 3. A thin film of thickness t and index of refraction 1.33 coats a glass with index of refraction 1.50 as shown above. Which of the following thicknesses t will not reflect light with wavelength 640 nm in air? (A) 160 nm (8) 240 nm (C) 360 nm (D) 480 nm 4. Lenses in fine quality cameras are coated to reduce the reflection from the lenses. If...
Question 5: How would dust and oil on the glass plates affect the results? EXPERIMENT 10 THIN FILM INTERFERENCE Light from a monochromatic source is shined downward on two glass plates that are separated at one end by a hair. Light that is reflected from the top and bottom surfaces of the wedge-shaped thin film of air undergoes interference, and a series of dark and light lines are seen. By counting the number of dark or light lines over a...
10.A narrow beam of white light is incident normally on the surface of a triangular silicate flint glass prism with one angle of 90. The index of refraction for violet light is 1.66 and for red light is 1.61. The angle in the prism is equal to 30° of glass. a. On the diagram below show an approximate sketch for the refracted light from the opposite face of the prism. Air B White light 780° Glass Calculate angular separation between...
Sometimes a nonreflective coating is applied to a lens, such as a camera lens. The coating has an index of refraction between the index of air and the index of the lens. The coating cancels the reflections of one particular wavelength of the incident light. Usually, it cancels green-yellow light (λ 546.0 nm) in the middle of the visible spectrum. (a) Assuming the light is incident perpendicular to the lens surface, what is the minimum thickness of the coating in...
show all working answers *Question 218: Lens-maker's Equation A double convex lens has radii r7 = +10 cm and r2 = -10 cm. It is made from glass with an index of refraction of 1.53 for red light and 1.47 for blue light. What is the difference between the focal lengths for blue and red light? Select one: O a. 9.42 cm O b. 10.64 cm O c. 1.20 cm d. 83.3 cm O e. 0.13 cm O f. 0.012...
Question 6: What percentage error would result from miscounting the bars by one? EXPERIMENT 10 THIN FILM INTERFERENCE Light from a monochromatic source is shined downward on two glass plates that are separated at one end by a hair. Light that is reflected from the top and bottom surfaces of the wedge-shaped thin film of air undergoes interference, and a series of dark and light lines are seen. By counting the number of dark or light lines over a known...
2. -/5 points KatzPSE1 36.P.015 My Notes Ask Your Teacher Sometimes a nonreflective coating is applied to a lens, such as a camera lens. The coating has an index of refraction between the index of air and the index of the lens. The coating cancels the reflections of one particular wavelength of the incident light. Usually, it cancels green-yellow light (à - 552.0 nm) in the middle of the visible spectrum. (a) Assuming the light is incident perpendicular to the...
I I know that the thickness = lambda/(2nsin 30) BUT why? I've also attached some notes I have! (Please explain using diagram and words for me to rate the answer) We were unable to transcribe this imageThin-Film Interference When light is incident on a thin transparent film, the light waves reflected from the front and back surfaces interfere. For near-normal incidence, the wavelength con ditions for maximum and minimum intensity of the light reflected from a film in air are...
Light enters an unknown liquid from air. The angle of the light is at 70.00000 degrees from the normal in air. The index of refraction of air is 1.000. The angle inside the liquid is 22.00000. What is index of the unknown medium? An object is placed 9.0000 cm in front of a lens with focal length =-6.0000cm. Where is the image formed (in cm). You must include the appropriate sign on your answer. Light with wavelength =550.0000nm is incident...
corrective Lenses (@) Spectacles are often coated to reduce reflection. The plastic of the lens has a very thin coating of some other material with different refractive index (as shown in the figure). 11 T2 Air ni Coating TLV n2 Lens n3 Figure - cross section showing three parallel layers of material (air, coating and the lens), with a light ray incident on the coating. The ray is partially reflected at the air/coating interface; the reflected ray Ti is shown....