When white light illuminates an oil film on water and the reflected light is viewed perpendicular to the surface of the water, no green light at 512 nm is reflected but there is a strong presence of red light with a wavelength of 640 nm. Determine the thickness of the oil film. Take the index of refraction of oil to be 1.28.

Q: Unpolarized light with an intensity of 98W/m^2 passes through two polarizing filters. If the light…

A: Given:Intensity of unpolarized light, I0 = 98 W/m2Intensity of light emerges from second filter, I'…

Q: What is the minimum thickness of a film of glass on both sides, that will reflect light at = 600nm…

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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: Medium Water Red Orange Yellow Green Blue Violet (660 nm) (610 nm) (580 nm) (550 nm) (470 nm) (410…

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Q: Light incident at 65 degree in air strikes a transparent material and produces reflected light that…

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Q: White light passes through a 15.0-cm-thick, silicate flint, glass slab with opposite, smooth,…

A: Given light passes through a 15.0-cm-thick angle between white light and normal =38° index of…

Q: The speed of light in a certain type of glass is 1.66 x 108 m/s for blue light with a wavelength of…

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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 light beam travels at 1.94 x 108 m/s in quartz. The wavelength of the light in quartz is 355 nm.…

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Q: A glass sheet 1.10 μm thick is suspended in air. In reflected light, there are gaps in the visible…

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Q: A possible means for making an airplane invisible to radar is to coat the plane with an…

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Q: b) A light beam travels at 1.94 x 108 m/s in quartz. The wavelength of the dental light in quartz is…

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Q: The Michelson interferometer can be used to measure the index of refraction of a gas by placing an…

A: Wavelength of light = Length of tube = L = 5.40 cm Fringe shift (number) = N = 168

Q: A soap bubble 250 nm thick is illuminated by white light. The index of refraction of the soap film…

A: Solution The wavelength that are not reflected is find using                                λm =2ntm…

Q: Blue light travels with a wavelength of 450 nm in air. What is its wavelength when traveling in…

A: Given data:         λ1= 450 nm= 450×10-9m        n1=1        n2= 2.42          λ2=?

Q: The index of refraction of silicate flint glass for red light is 1.620 and for violet light is…

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Q: White light is incident on a soap film at an angle sin^-1 4/5 and the reflected light is observed…

A: According to the destructive interference, the thickness of the film is, ∆x=n+12λ For minimum…

Q: 12. Three polarizing disks have planes that are parallel and centered on a common axis. The…

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Q: The angle between the axes of two polarizing filters is 45.0. By how much does the second filter…

A: The expression for the intensity is,

Q: A beam of light is incident at 30° on a piece of glass in air. The dispersion of colours spans 1 mm…

A: Angle of incidence i=30°L=10 cmColor spam, x=1 mm=0.1 cmnred =1.513 Let us assume the angle of…

Q: Diamond sparkles a lot because it has a very high refractive index 2.42. The light entering the…

A: Critical angle:- IT is the maximum incidence angle at which refracted ray will get parallel to the…

Q: travelling from air hits a dangerous glycerol (n=1.45) spill on the top of a piece of pyrex glass…

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Q: A beam of coherent orange light in air (nD = 1.00029) strikes a piece of glass with a refractive…

A: Given Data:The refractive index of air is na=1.00029.The refractive index of air is ng=1.52.The…

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.