White light is sent downward onto a horizontal thin film that is sandwiched between two materials. The indexes of refraction are 1.80 for the top material, 1.70 for the thin film, and 1.50 for the bottom material. The film thickness is 5.00* 10-7 m. Of the visible wavelengths (400 to 700 nm) that result in fully constructive interference at an observer above the film, which is the (a) longer and (b) shorter wavelength? The materials and film are then heated so that the film thickness increases. (c) Does the light resulting in fully constructive interference shift toward longer or shorter wavelengths?

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A: Calculate the tangent of angle θ. tanθ=yRtanθ=0.88 mm×1 m1000 mm75 cm×1 m100 cmtanθ=1.173×10−3…

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

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Q: You are measuring the wavelength of light from a certain single-colour source. You direct the light…

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Q: A film of oil lies on wet pavement. The refractive index of the oil exceeds that of the water. The…

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Q: A 634-nm-thick soap film (n = 1.48) in air is illuminated with white light in a direction…

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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

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Q: ht is λ = 4250 Å. θ1 and θ2 are the angles to the first and second bright fringes above the center…

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Q: Light waves with two different wavelengths, 632 nm and 474 nm, pass simultaneously through a single…

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Q: A beam of red light, λ = 660 nm, passes through double slits separated by 0.0800 mm. What is the…

A: Given, Wavelength λ = 660 nm = 660 x 10-9 m Separation between slits d = 0.0800 mm = 0.0800 x 10-3 m…

Q: Kerosene (n = 1.20) was spilled on the water in the ocean (n = 1.30) creating a large thin layer.…

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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…

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Q: A thin film of oil (n = 1.4) of thickness 1.38micrometers. is compressed between two glass slabs (n…

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Q: Two glass microscope slides, of length 10 cm, are in contact at one end and separated by a sheet of…

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A: Given,  Length of the rod L=8.5 cm  wavelength λ=530 nm ∆T=21.5°C

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 film of oil lies on wet pavement. The refractive index of the oil exceeds that of the water. The…

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Q: A thin film of acetone (n = 1.25) coats a thick glass plate (n = 1.50). White light is incident…

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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: A thin film of oil (no = 1.5) with varying thickness floats on water (n = 1.33). When it is…

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Q: A soap bubble (n =1.33) is floating in air. If the thickness of the bubble wall is 115 nm, what is…

A: Given :  n = 1.33 t = 115 nm = 115 × 10-9 m

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Q: The ocean has index of refraction 1.33. At the bottom of the ocean, a thin layer of slime with index…

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Q: In your research lab, a very thin, flat piece of glass with refractive index 1.40 and uniform…

A: Given: The refractive index of glass, nglass=1.40=nflimRefractive index of air, nair=1.0λo =496…

Q: Light waves with two different wavelengths, 642 nm and 474 nm, pass simultaneously through a single…

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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: A thin film, with a thickness of 272.7 nm and with air on both sides, is illuminated with a beam of…

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Q: A laser beam is incident on two slits with separation d = 0.026 mm. A screen is placed L = 3.2 m…

A: So the given situation is as follows:

Q: A thin film of oil (n = 1.15) is located on smooth, wet pavement. When viewed from a direction…

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Q: A broad beam of light of wavelength 600 nm is sent directly downward through the glass plate (n =…

A: given,  λ=600 nm=600×10-9 mng=1.41np=1.24 a. The thickness of wedge in the right end is t=mλ2seven…

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Q: Broad spectrum of light illuminates a thin film of water (refractive index 1.33) on glass…

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

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Q: the thickness of human hair is to be measured using the interference pattern produced by an air…

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Diffraction of light

In physics, the term diffraction is defined as the bending of light around the corners of the obstacle. As a light ray passes by an aperture, it bends around the edges or through slits, it spreads out through a narrow opening. The diffracted light will produce fringes of bright and dark or colored bands which are labeled as a diffraction pattern.