What is the thinnest film of a coating with n = 1.42 on glass (n = 1.52) for which destructive interference of the red component (650 nm) of an incident white light beam in air can take place by reflection?

Q: Light of wavelength 500 nm is incident perpendicularly from air on a film 10-4 cm thick and of…

A: (a)Use the relation between wavelength and refractive index to calculate the number of wavelengths.…

Q: Consider a thin film of thickness t = 2.30 × 10-6 m and index of refraction ng = 1.20. The film is…

A: From the question, it is given that- Thickness of thin film: t = 2.30×10-6 m Refractive index of…

Q: Because the coating is expensive, you want to use a layer that has the minimum thickness possible,…

A: We have to apply the condition for destructive interference.

Q: A film of liquid with refractive index 1.3 is spread on glass whose refractive index is 1.65.…

A: refractive index of liquid (n) = 1.3 refractive index of glass (N) = 1.65wavelength (λ) = 620 nm

Q: A 750 nm red light is not reflected in air by a thin film deposited on glass. If the thickness of…

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Q: You wish to make an anti-reflective coating from a material with index of refraction 1.61 to put on…

A: Given:refractive index of material, n1 = 1.61refractive index of glass, ng = 1.31wavelength of…

Q: An oil film with refractive index 1.48 and thickness 290 nm is floating on water and illuminated…

A: Given, Refractive index, k = 1.48 Thickness, t = 290 nm = 290 x 10-9 m

Q: An oil film (n=1.45) floating on water is illuminated by white light at normal incidence. The film…

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Q: Problem 7. After a car is painted, a highly reflective coating is sprayed on to make the car look…

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Q: Laser light of wavelength 460 nmnm is traveling in air and shines at normal incidence onto the flat…

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Q: A glass sheet 0.910 um thick is suspended in air with white light incident perpendicularly on the…

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Q: A thin film of thickness 0.4 x 10-6 m and refractive index 1.4 is coated on plastic of refractive…

A: Given data: Thickness of the film, t=0.4×10-6 m Refractive index of thin film, n=1.4 Refractive…

Q: Counter-propagating light with a vacuum wavelength of 585 nm interferes inside a medium with…

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Q: A thin film of index nflm 1.40 coats a thick glass plate of index n, 'glass 1.50. g The film is…

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Q: transparent material (n-1.25) so that light of wavelength 620nm (in vacuum) incident normally is not…

A: Given: Refractive index of material = n = 1.25  Refractive index of glass, ng = 1.5  Wavelength =…

Q: The hard outer coating of many beetles has microscopic structures that produce amazing colors. In…

A: Let the given angles of the consecutive minima (m and m + 1) be denoted by θ1 and θ2, respectively.…

Q: A thin uniform film of refractive index 1.750 is placed on a sheet of glass with a refractive index…

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Q: Monochromatic light of wavelength 589 nm is incident from air on a water surface. What are the…

A: Given:  Wavelength = 589 nm  refractive index,  n = 1.33

Q: Solar cells are an example of anti-reflective coatings. Let a silicon solar cell (n = 3.45) coated…

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Q: A thin film of oil (n = 1.25) is located on smooth wet pavement, creating a system composed of the…

A: Given information: The refractive index of the oil ηoil=1.25 The refractive index of the water…

Q: A soap film surrounded by air has an index of refraction of 1.38. If a region of the film appears…

A: index of refraction (n) = 1.38 Wavelength (λ) = 633 nm = 633 x 10-9 m

Q: A film of oil on water will appear dark when it is very thin, because the path length difference…

A: Here's the detailed explanation:To determine the maximum thickness of an oil film that appears dark…

Q: When white light illuminates an oil film on water and the reflected light is viewed perpendicular to…

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Q: A 596-Å-thick layer of ZnS (n = 2.35) is deposited on glass (n = 1.52). Calculate the normal…

A: For normal incidence, δ=2πλnft Here, the thickness of the film,t=596×10-10m Index of the film,…

Q: A red laser beam with wavelength λ = 6.33 × 10-7 m is shone through a pair of narrow slits with a…

A: Step 1: Step 2: Step 3: Step 4:

Q: A sheet of glass of refractive index 1.50 is coated with a 400 nm-thick layer of oil of index 1.36.…

A: Given, Refractive index of glass sheet nglass = 1.50  Thickness of oil layer t = 400 nm Refractive…

Q: White light is directed perpendicular to an oil film (n = 1.45). Calculate the minimum non-zero…

A: refractive index of the oil film, n=1.45 wavelength of the light, λ=450nm we have to find the…

Q: What is the thickness of the film of Cryolite (R.I.= 1.36) is coated on a glass surface…

A: Refractive index of cryolite=1.36 Refractive index of glass plate=1.55 Wavelength=5893A.U…