An oil film on top of water has one patch that is much thinner than the wavelength of visible light. The index of refraction of the oil is less than that of water. Will the reflection from that extremely thin part of the film be bright or dark? Explain.

Q: A light of wavelength 589 nm passes from air to a diamond. The thickness of diamond is 4.2 x 10⁹ m.…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Radio waves from a star, of wavelength 2.50 3 102 m, reach a radio telescope by two separate paths,…

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Q: A thin, flat slide of glass (n = 1.50) lies on a table, and a second, identical glass slide is…

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Q: A thin layer of oil with index of refraction no = 1.47 is floating above the water. The index of…

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Q: E19 Explain why, for visible interference effects, it is normally necessary for the light to come…

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

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Q: As shown the light intensity on a screen behind a double slit. The slit spacing is 0.20 mm and the…

A: Given The spacing between the slits is d = 0.20 mm = 0.20 x 10-3 m. The distance between the slit…

Q: Which is true when a monochromatic light passes through a double-slit? Select one: a. Two waves…

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Q: wo flat glass plates are separated by a distance d = 123 nm. There is d directly down on the glass.…

A: Given data: Distance, d = 123 nm  Refractive index of glass ng=1.49 Refractive index of oil, no=1.25…

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A: Given:- A thin film with an index of refraction of 1.45 is spread across flint glass with an index…

Q: Puh-lastic. Plastic coatings are put in car's glass windows (n = 1.52) in order to keep the interior…

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Q: nght m (a) What is its frequency? |Hz (b) What is its wavelength in glass that has an index of…

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Q: A 20-mm-thick layer of water (n = 1.33) floats on a 40-mm-thick layer of carbon tetrachloride (n =…

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Q: #6 Thin Films: Minimizing Reflection A thin diamond film (recall that the refraction index of…

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Q: A soap film is held vertically in air and is viewed in reflected light as in Figure CQ24.14. Explain…

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Q: 2) Coming to the glass at a right angle, A beam of 600 nm wavelength in air is a quartz What is the…

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Q: 6. A thin film of soapy water with an index of refraction of 1.39 has a thickness of 1.15 x 10-7 m…

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Q: A thin sheet of transparent material has an index of refraction of 1.40 and is 15.0 μm thick. When…

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Q: 78 A thin film of liquid is held in a horizontal circular ring, with air on both sides of the film.…

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Q: A soap bubble (n = 1.30) having a wall thickness of 127 nm is floating in air. (a) What is the…

A: (c)  In general, for constructive interference in such situations: 2nt=m+12λ Now to find the…

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Q: A transparent oil with index of refraction 1.17 spills on the surface of water (index of refraction…

A: Write the equation of the path difference. Here, λ­­­oil is the wavelength of oil, λ­­­air is the…

Q: Please, I need help on this problem. Thank you.

A: a) It is given that

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Q: Which factor is NOT involved in the production of colored patterns exhibited when white light is…

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Q: A transparent oil with index of refraction 1.29 spills on the surface of water (index of refraction…

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Q: Plastic coatings are put in car's glass windows (n = 1.52) in order to keep the interior of cars…

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Q: . Real life example of Constructive Interference A. Light reflected from a film of oil floating on…

A: (6) Light reflected from a film of oil floating on water is best real life example of interference…

Q: 92 Figure 35-56a shows two light rays that are initially in phase as they travel upward through a…

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Q: 1. Analysis of an interference effect in a clear solid shows that the wavelength of light in the…

A: Given: wavelength in air λair = 634 nm             wavelength in the medium(solid) λsolid=330 nm…

Q: A tank of gasoline (n = 1.40) is open to the air (n = 1.00). A thin film of liquid floats on the…

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Q: A plane wave of monochromatic light is incident normally on a uniform thin film of oil that covers a…

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Q: A plastic bubble of thickness 102 nm has its strongest (m = 1) reflection maximum at 604 nm. What is…

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Q: #7 Thin Soap Films: Maximizing Reflection A soap bubble consists of a film with an index of…

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Q: An oil slick on water is 115 nm thick and illuminated by white light incident perpendicular to its…

A: The expression for find longest wavelength is t=λ4nλ=t4n

Interference of Light

The word "constructive" signifies addition in interference. Constructive interference occurs when the path of the waves that start from the slit differs by 1 entire wavelength or in the intervals of the same. Hence, the waves that are presented on the screen are in phase (crest to crest/trough to trough). The waves interfering constructively forms bright fringes on the screen.