Unreasonable ResultsTo save money on making military aircraft invisible to radar, an inventor decides to coat them with a nonreflective material having an index of refraction of 1.20, which is between that of air and the surface of the plane.This, he reasons, should be much cheaper than designing Stealth bombers. (a) What thickness should the coating be to inhibit the reflection of 4.00-cmwavelength radar? (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent?

Q: Stealth aircraft are designed to not reflect radar, whosewavelength is typically 2 cm, by using an…

A: Given Data: The wavelength of radar is, λ=2 cm   The expression for the thickness in terms of…

Q: Consider a thin film of thickness t = 2.30 × 10-6 m and index of refraction ng = 1.20. The film is…

A: From the question, it is given that- Thickness of thin film: t = 2.30×10-6 m Refractive index of…

Q: What is the wavelength of light falling on double slitsseparated by 2.00 μm if the third-order…

A: Given : distance between the slits, d = 2.00 μm = 2.00 × 10-6 m               Angle between maximum…

Q: InFig. 36.12c the central diffraction maximum contains exactly seven interferencefringes, and in…

A: To determine: Ratio da, if the central maximum contains exactly five fringes. Number of fringes…

Q: A laser light with wavelength of, 630nm, allowed to pass through double slit interference wilh a…

A: Given The wavelength of laser light is λ=630 nm=630×10-9 m. The seperation distance of interference…

Q: At what angle will light reflected from diamond becompletely polarized?

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Q: Calculate the percentage decrease in monochromatic intensity I, when the light passes through the…

A: When light passes through some material, it interacts with the atoms present inside the material.…

Q: difference between the beams is x/2 at the point.A and r at the point B, then the difference between…

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Q: When a vertical beam of light passes through a transparent medium, the rate at which its intensity I…

A: K=1 I=0.05263I0 Refer attachment

Q: When the movable mirror is translated by 0.07 mm, a shift of 300 fringes is observed. What is the…

A: In Michelson interferometer, the shift in the number of fringes due to the translation of the mirror…

Q: Three polarizing filters are stacked with polarizing axes ofthe second and third filters at 30.0∘and…

A: (a)Consider the unpolarized light incident on the stack, intensity of light is 110 W/cm2.According…

Q: If a diffraction grating produces a first-order maximum forthe shortest wavelength of visible light…

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Q: Suppose you pass light from a He-Ne laser through two slits separated by 0.0100 mm and find that the…

A: The given values are, d=0.0100 mm=0.0100×10-3 mθ=10.95°m=3

Q: What is the spacing between structures in a feather that acts as a reflection grating, given that…

A: Given information: The wavelength of the incident light, λ=525 nm=525×10-9 m The angle of the…

Q: A monochromatic light is incident at a certain angle on an equilateral triangular prism and suffers…

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Q: A ray of light from air is incident at 0, on a transparent plate of thickness d. Show that the…

A: (a) By using Snell's law: n1 sinθ1=n2 sinθ2 For air, refractive index is n1=1 For transparent plate…

Q: Derive the formula relating the hair strand thickness, t, angular inclination of the intensity…

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Q: Four polarizers are placed in succession with their axesvertical, at 30.0° to the vertical, at 60.0°…

A: Given: The number of polarizers is 4.

Q: The limit to the eye’s acuity is actually related to diffraction by the pupil. What is the angle…

A: diameter of pupil,  D = 3 mm = 0.003 m wavelength, λ = 550 nm = 550 x 10-9 m

Q: Analysis of an interference effect in a clear solid shows thatthe wavelength of light in the solid…

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Q: To save money on making military aircraft invisible to radar,an inventor decides to coat them with a…

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Q: Visible light is incident perpendicularly on a diffraction grating of 200 rulings/mm. What are the…

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Q: The transmitting antenna on a submarine is 5.00 m above the water when the ship surfaces. The…

A: The following figure shows the transmission of the signal.

Q: ction a single-slit be 1.40 mm from the m) of the incident light?

A: GivenThe position of second order dark fringe from center of central maximum, yy=1.40 mm=1.4×10-3…

Q: Calculate the R.I. of the antireflection film of minimum thickness 935 A.U. to be coated on solar…

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Q: A pint of light lager has an absorption coefficient of 10 m- and a centre diameter of 6.0 cm. If a…

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Q: As a soap bubble thins it becomes dark, because thepath length difference becomes small compared…

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Q: What is the distance between lines on a diffraction gratingthat produces a second-order maximum for…

A: Given:  wavelength = 760 nm = 760 x 10-9 m  order, m = 2  angle = 60 degree

Q: A soap bubble is 100 nm thick and illuminated by whitelight incident perpendicular to its surface.…

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Q: For a light wave travelling from glass (n¡=1.46) to water(n=1.34), determine ne phase shift…

A: Given that: Index in air, n1 =1.46 Index in glass, n2 = 1.34 Angle of incidence, = 25 degree

Q: If ɛ, and µ, are the electric permittivity and magnetic permeability of free space and ɛ and µ are…

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Q: Prove that, if I is the intensity of light transmitted by twopolarizing filters with axes at an…

A: The expression for the intensity of the wave transmitted from the polarizer at an angle θ is given…

Q: Show that if you have three polarizing filters, with thesecond at an angle of 45º to the first and…

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Q: Given a diffraction grating of red light at 650nm at an angle of 37.5o how many lines per cm does…

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Q: A plastic light pipe has an index of refraction of 1.53. For totalinternal reflection, what is the…

A: Given:refractive index of plastic pipe = 1.53

Q: calculate the pressure at which the index of refraction of air would be equal to that of water…

A: the difference between the refractive index and 1 is proportional to the pressure of the gas. Thus…

Q: Suppose you pass light from a He-Ne laser through two slits separated by 0.0143 nm and find that the…

A: Separation between slits = 0.0143nm No. Of bright line = 3 θ= 22.95°

Q: The index of refraction for violet light in silica flint glass is s nR= 1.55. What is the angular…

A: Given data:-  We know that We have given that the index of refraction for violet light in silica…

Q: Light from a 560-nm monochromatic source is incident upon the surface of fused quartz (n = 1.56)  at…

A: Given data:  Index of refraction (n) = 1.56 Angle of incidence (i) = 60° Required: Angle of…