Ch 27, problem 9 Light of wavelength 580 nm (in vacuum) is incident perpendicularly on a soap film (n = 1.35) suspended in air. What are the two smallest nonzero film thicknesses (in nm) for which reflected light undergoes constructive interference? Let (a) be the smaller of the two values. Let (b) be the larger of the two values.

Q: In a location where the speed of sound is 353 m/s, a 2,000 Hz sound wave impinges on two slits 30 cm…

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Q: A disabled tanker leaks kerosene (n = 1.20) into the Persian Gulf, creating a large slick on top of…

A: The refractive index of oil is greater than the air, but smaller than that of water.

Q: A disabled tanker leaks kerosene (n = 1.20) into the Persian Gulf, creating a large slick on top of…

A: Given,refractive index of kerosene, n1 = 1.20refractive index of water, n2 = 1.30thickness, d = 475…

Q: In a location where the speed of sound is 354 m/s, a 2 000-Hz sound wave impinges on two slits 30.0…

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Q: In a certain crystal the spacing between crystal planes is 0.165 nm. (a) If you shine a beam of x…

A: n=Order=1d=Distance between crystal planes=0.124 nmλ=Wavelength=0.165 nmθ=Angle between beam and…

Q: Coherent light of wavelength 630 nm falls on a double slit with a slit separation of 0.105 mm. An…

A: Given that wavelength of coherent light and distance between the slits and also given the distance…

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

A: Given:Glass window refractive index, n=1.52Thickness, t = 107.5 nmWavelength, λ=600 nm

Q: A company trains a fleet of drones to seek out exposed empty plastic water bottles in a landfill.…

A: Given that:nplastic=1.575 t=625 μm=625×10-6 mnwater=1.33nair=1

Q: Light at 594 nm from a helium–neon laser shines on a pair of parallel slits separated by 1.75 ✕ 10−5…

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Q: A 2000 Hz sound wave passes through a wall with two narrow openings 30 cm apart. If sound travels on…

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Q: The reflection of perpendicularly incident white light by a soap film in air has an interference…

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Q: In the two-slit interference experiment, the slit widths are each 4.0 μm, their separation is 24.0…

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Q: A thin film of acetone (n 1.25) is coating a thick glass plate (n 1.50). Plane light waves of…

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Q: A 600-nm-thick soap film (n= 1.40) in air is illuminated with white light in a direction…

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Q: A mixture of red light (λvacuum = 640 nm) and green light (λvacuum = 512 nm) shines perpendicularly…

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Q: Light at 633 nm from a helium-neon laser shines on a pair of parallel slits separated by 1.45 ×10−5…

A: The light λ=633nm  The screen (D) =2.00m  Slit width (d) =1.45×10-5m.

Q: Light at 594 nm from a helium-neon laser shines on a pair of parallel slits separated by 1.43 x 10-5…

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Q: A disabled tanker leaks kerosene (n = 1.20) into the Persian Gulf, creating a large slick on top of…

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Q: A- Consider a bubble formed from a thin, soapy film that looks blue when viewed at normal incidence.…

A: The condition of constructive interference is given as, Here, d represents the thickness of the…

Q: White light reflected at perpendicular incidence from a soap film in air has, in the visible…

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Q: What is the following wavelength?

A: The expression for the wavelength is,

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Q: The light of a wavelength of 598 nm shines on a soap film (n= 1.46). For what minimum soap film…

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Q: In the figure, two isotropic point sources of light (S1 and S2) are separated by distance 3.20 um…

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Q: Light at 594 nm from a helium–neon laser shines on a pair of parallel slits separated by 1.71 ✕ 10−5…

A:

Q: A disabled tanker leaks kerosene (n = 1.20) into the Persian Gulf, creating a large slick on top of…

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Q: A thin film of soap with n = 1.40 hanging in the air reflects dominantly red light with λ = 664 nm.…

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Q: The light reflected from a soap bubble (n = 1.40) appears red (λ = 640 nm) at its center. What is…

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Q: -order constructive interference that can be obtained from a laser beam whose m through two slits…

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Q: In the figure, two isotropic point sources of light (S1 and S2) are separated by distance 3.20 um…

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Q: What is the minimum thickness of a soap bubble film (n = 1.46) on which light of wavelength 500 nm…

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Q: A 2000 Hz sound wave passes through a wall with two narrow openings 30 cm apart. If sound travels on…

A: (a) 33.36° (b) 0.0391 m  (c) f= 5.45 × 10 14 Hz

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.