A thin film of water of thickness 220nm is placed on top of a glass surface. What color will the film appear when viewed directly from the top? - Yellow  - Red - Green  -black  - Blue

Q: The wavelength of a light wave in air is 720 nm. Is the wavelength of this wave higher, lower, or…

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Q: Building contractors often install double-glazed windows to prevent thermal energy (heat) from…

A: In this question we have to find the shift in path as the light enters the room. Please give…

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: . What is the thickness of the slab?

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Q: A beam of green light with wavelength = 520 nm emerges from a block of fused quartz into the air at…

A: When light travels in a medium, the wavelength of light reduces by the factor of refraction…

Q: For 589-nm light, calculate the critical angle for the following materials surrounded by air. (a)…

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Q: A monochromatic light source emits a wavelength of 490 nm in air. When passing through a liquid, the…

A: Wavelength in air = 490 nmWavelength in liquid = 429 nm

Q: prevent thermal energy (heat) from entering or exiting a building. In addition to being effective…

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Q: If a soap bubble is 112.5 nm thick, what colour will appear at the centre when illuminated normally…

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Q: A thin layer of liquid methylene iodide (n = 1.756) is sandwiched between two flat, parallel plates…

A: 91.97 nm

Q: The data on a CD is stored as a series of pits in a spiral track on a metal information layer (see…

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Q: The fingers on your hand are approximately 0.5 cm apart. Ignoring atmospheric blurring, what size…

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Q: At what angle will light traveling in the air be completely polarized horizontally when reflected…

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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: Diamond has an index of refraction of 2.419. What is the critical angle for internal reflection…

A: Here Refractive index of diamond = n = 2.419 We have to calculate the critical angle.

Q: In placing a sample on a microscope slide, a glass cover is placed over a water drop on the glass…

A: When light beam from one medium having lower refractive index enters into the medium having high…

Q: A lens with an index of refraction of n2 = 1.60 is to be coated with a film of material (n, = 1.40)…

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Q: . Taking R.I. of glass as 1.5 and water as 1.3 respectively. Find the polarising angles for a beam…

A: We need to compute- Polarising angles for (a) water to glass (b) glass to water (c) air to glass…

Q: 5. Assume the indices of refraction for air, water, and glass are 1.00, 1.33, and 1.50,…

A: The refractive index of air is given as, na=1.00, The refractive index of water is given as,…

Q: A narrow beam of light containing red (660 nm) and blue (470 nm) wavelengths travels from air…

A: Given that: Angle of incidence: i=29°Thickness, t=1.20 cmWavelength of red: λR=660 nmWavelength of…

Q: Microtubules are structures in cells that maintain cell shape and facilitate the movement of…

A: Given: The diameter of the tube is 25 nm. The wavelength of emitted light id 500 nm. The NA of the…

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: A 5.00cm-thick layer of oil is sandwiched between a 1.00 cm-thick sheet of glass and a 2.00 cm-thick…

A: so the speed of light changes in different mediums depending on the index of refractionI am looking…

Q: If light from a 560-nm monochromatic source in air is incident upon the surface of fused quartz…

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Q: A 130 nm130 nm thick anti‑reflective film, with an index of refraction of 1.37,1.37, is placed on…

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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…

A: Step 1 The film appears dark when held vertically in air and viewed in the reflected light because…

Q: A flat sheet of crown glass has a thickness of 1.8 cm. It is on top of a flat sheet of diamond that…

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Q: A monochromatic beam of light in air has a wavelength of 589 nm in air. It passes through glass…

A: The wavelength of the light in the air The refractive index of glassThe refractive index of carbon…

Q: As a light ray (wavelength = 500 nm) is passing through an air-to-glass boundary, what happens to…

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Q: A narrow beam of light containing red (660 nm) and blue (470 nm) wavelengths travels from air…

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Q: A light ray in air enters a 3 cm thick glass slab (n=1.5) at 45° to the vertical and exits the other…

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Q: Consider a ray incident on an interface between air (n = 1) and glass (n = 1.5) at a 50◦angle, as…

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Q: (a) A spectrograph contains one lens, a mirror and a reflection grating. In the visible waveband…

A: Given: The transmission coefficient is t=85%=85100=0.85. The absorption coefficient is…

Q: Two light beams are incident normal to one surface of a triangular prism with refractive index n =…

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Q: An underwater light in a swimming pool is on the side of the pool, 1m below the surface of the…

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Q: If polarization by reflection is computed, at what angle will light from the source travelling in…

A: The Brewster Angle is given by: θpolarizing = arctan(nt/ni)

Q: A small air bubble is 4.2 cm below the surface of a clear piece of plastic. When an opaque disk with…

A: Given Height (h) = 4.2 cm Radius (r) = 3.4 cm