Light of wavelength A falls at normal incidence from air upon a plastic film ofthickness d, coated on glass. The refractive index of the plastic film is n2, and that of glass isn3, where n, > n; > nar. Find the minimum thickness of plastic to obtain a bright spot whenviewed from the top.airdn2plasticn3glass

Answered: Image /qna-images/answer/a0e8ae20-fa24-4dfd-9fcc-b82938549172.jpg

Answered: Light of wavelength A falls at normal…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Similar questions

Determine the maximum angle 0 for which the light rays incident on the end of the light pipe in the figure below are subject to total internal reflection along the walls of the pipe. Assume the light pipe has an index of refraction of 1.27 and the outside medium is air. O 2.00 μm
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3. If on a glass plate with refractive index 1.52, rests a soap bubble of thickness 742nm with n=1.33, what will be the colours seen on the soap bubble.
1- If we have an etalon (a glass blade) with a thickness of 1 cm and a refractive index of 2, what will be the maximum and minimum total reflection? What is its total reflection coefficient for a wavelength of 500 nm?
V:300 2 ohm 3 ohm 6 ohm 6 ohm Find I1, I2, I3, I4, I5 and I6. Find the total resistance. The picture is below.
Problem 4 A worker is required to identify and inspect an object 1 m away. It is illuminated by a 75-W light source 1 m to his left. The background against which the object is viewed is 1.5 m away. If the reflectances of the object and background are .6 and .5 respectively, what is the contrast? background .5 m object 1 m light 1 m eye
Light is incident from air to glass at Brewster's angle. 1- Determine the incident and Transmitted angles. 2- Calculate the reflection coefficient for S-polarized. 3- Reflection coefficient for p- polarized.
1- Consider a step-index optical fibre with refractive index n₁ = 1.4332 in the core and n₂=1.3223 in the cladding. a) Explain the geometrical propagation of light along the fibre. b) Calculate the critical angle at the core-cladding interface. c) We call numerical aperture (NA) to the magnitude defined by : NA=sin 0, where 0 is the maximum acceptance angle of incidence for light to be transmitted in the fibre. Show that NA = (nn) and calculate NA for this optical fibre. air 0₁ cladding n₂ cladding n₂ core n
A glass lens has a coating placed on it. If a film of magnesium fluoride, n = 1.38, is placed on the glass, n = 1.52, how thick should the layer be to keep yellow-green light from being reflected? A. 92 nm B. 101 nm C. 140 nm D. 192 nm
The index of refraction for blue light of wavelength 434 nm in a glass sample is 1.650 and for red light of wavelength 695 nm it is 1.592. If a beam containing these two colors has an angle of incidence with the glass of 30.0°, what is the angle between the two beams inside the glass? Additional Materials Reading
What is the material and refrective index (n) according to the figure Material Air Index of Refraction (n) 1.000 27.6° 27.6° Material 18.0° Index of Refraction (n) O a. 1.499, water O b. 1.499, Glass O c. 0.666, Water O d. 0.666, Glass
Light is incident from medium 1 to medium 2 at Brewster's angle equal to 55.4º, and transmitted angle is 34.6°, the permeability of medium 2 is 3/4. 1- Calculate refractive indices for medium 1and medium 2. 2- Calculate the reflection coefficient for s-polarized. 3- Reflection coefficient for p- polarized.

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