Concept explainers
SSM WWW A disabled tanker leaks kerosene (n = 1.20) into the Persian Gulf, creating a large slick on top of the water (n = 1.30). (a) If you are looking straight down from an airplane, while the Sun is overhead, at a region of the slick where its thickness is 460 nm, for which wavelength(s) of visible light is the reflection brightest because of constructive interference? (b) If you are scuba diving directly under this same region of the slick, for which wavelength(s) of visible light is the transmitted intensity strongest?
Want to see the full answer?
Check out a sample textbook solutionChapter 35 Solutions
Fundamentals of Physics Extended
Additional Science Textbook Solutions
Chemistry: A Molecular Approach (4th Edition)
Principles of Anatomy and Physiology
Chemistry: Structure and Properties (2nd Edition)
Microbiology: An Introduction
Human Physiology: An Integrated Approach (8th Edition)
Campbell Biology: Concepts & Connections (9th Edition)
- To 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-cm wavelength radar? (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent?arrow_forward1)) Electromagnetic radiation of intensity I0 = 380 W/m^2 passes through two parallel. Arrow slots that are d = 2.8 μm part and strikes a screen located L = 1.4 m from the slits. The intensity of the radiation in the screen at y = 4.6 mm from the central interference maximum is I = 55 W/m^2. A)) Calculate the phase difference, in radians, between the rays from the two slits as they strike the screen at the specified distance from the center maximum, B)) Calculate the average wavelength of the radiation, in nanometers.arrow_forwardLight of wavelength A = 629 nm is incident %3D from vacuum onto glass of index of refraction n = 1.49 with an angle of incidence e = 30°. Taking the speed of light in vacuum equal to 3 × 10^8 m/s, then the wavelength, Ag, and the frequency, fg, of light in the glass are respectively: O 422.1 nm; 4.8×10^14 Hz 422.1 nm; 7.1×10^14 Hz 433.8 nm; 6.9x10^14 Hz O 408.4 nm; 4.8×10^14 Hz 433.8 nm; 4.8×10^14 Hzarrow_forward
- A disabled tanker leaks kerosene (n = 1.2O) into the Persian Gulf, creating a large slick on top of the water (n = 1.30). (a) If you are looking straight down from an airplane, while the Sun is overhead, at a region of the slick where its thickness is 467 nm, for which wavelength(s) of visible light is the reflection brightest because of constructive interference? (b) If you are scuba diving directly under this same region of the slick, for which wavelength(s) of visible light is the transmitted intensity strongest? (a) Number Units (b) Number Unitsarrow_forwardLaser light of wavelength 460 nmnm is traveling in air and shines at normal incidence onto the flat end of a transparent plastic rod that has nn = 1.30. The end of the rod has a thin coating of a transparent material that has refractive index 1.75. a)What is the minimum (nonzero) thickness of the coating for which there is maximum transmission of the light into the rod? b)What is the minimum (nonzero) thickness of the coating for which transmission into the rod is minimized?arrow_forward(c) The electric fields from two e/m waves are described by E1 = 10.0 cos(kr – wt) N/C and E2 = 15.0 cos(kr – wt + 60°) N/C. What is the phase of the resultant electric field (in degrees)? (d) Electrons moving at a speed of 30 m/s pass through a single slit of diameter 8.5 x 10-5 m. A diffraction pattern forms, due to the wave nature of the electrons. At what angle (in degrees) is the first-order minimum of this pattern located? (e) A neutron (with mass m, = 939.566 MeV/c²) is confined inside a nucleus of the most common isotop of iron, Fe. Assume the nucleus is spherical, and that the uncertainty in the position of the neutron is the diameter, not the radius, of the nucleus. What is the minimum uncertainty in the velocity of the neutron, in m/s?arrow_forward
- Diffraction occurs for all types of waves, including sound waves. High-frequency sound from a distant source with wavelength 9.00 cm passes through a slit 12.0 cm wide. A microphone is placed 8.00 m directly in front of the center of the slit, corresponding to point O in Fig. The microphone is then moved in a direction perpendicular to the line from the center of the slit to point O. At what distances from O will the intensity detected by the microphone be zero?arrow_forwardLight of wavelength λ = 520 nm and intensity I0 = 290 W/m2 is incident upon two narrow slits that are separated by a distance d = 32 μm. (a) Write an equation for the cosine of half of the phase difference φ between the waves passing through the two slits in terms of the initial intensity I0 and the resulting intensity I. (b) What is the smallest phase angle, φ in radians, for which the resulting intensity of the light will be I = 110 W/m2? (c) What is the correct formula for the diffraction angle, θ, relative to the normal in terms of λ, d, I0, and I. (d) What is the smallest angle from the normal θ, in radians, for which the resulting intensity of the light will be I = 110 W/m2?arrow_forwardConsider a thin film of thickness t = 2.30 × 10-6 m and index of refraction ng = 1.20. The film is rest- ing on a material of index of refraction ne = 1.13, and its top face is exposed to air na = 1.00. What is the shortest wavelength of visible light that will interfere destructively when incident on the film at angle Oa = 22.0° from the normal? Give your answer in nanometers, to three significant figures. [Note: you may ignore the fact that the wavelength will change upon refraction; this will only very slightly affect the answer.] ncarrow_forward
- Two sources are emitting coherent, monochromatic EM waves with a wavelength of 2 cm in air. Source 1 is embedded in a material with index of refraction n1 = 1.5. The distance between source 1 and the edge of the material is 6 cm. You can assume nair = 1. At the point marked with an X, which is 9 cm from source 2 and 3 cm from the edge of the material that source 1 is embedded inside, what kind of interference will you find between EM waves from the two sources? Group of answer choices Destructive Constructivearrow_forwardIf a soap bubble is 120 nm thick, what wavelength is most strongly reflected at the center of the outer surface when illuminated normally by white light? Assume that the index refraction of air is na 1 (the actual value is 1.0003) and the index refraction of soap is ns = 1.35.arrow_forwardLight of wavelength A = 629 nm is incident from vacuum onto glass of index of refraction n= 1.49 with an angle of incidence 0 = 30°. Taking the speed of light in vacuum equal to 3 x 10^8 m/s, then the waveleng th, Ag, and the frequency, fg, of light in the glass are respectively: O 422.1 nm; 4.8x10^14HZ O 408.4 nm; 4.8x10^14 Hz O 422.1 nm, 7.1x10*14 Hz O 433.8 nm, 4.8x10 14 Hz O 433.8 nm, 6.9x10 14HZ aonherical mirror is located at a distance gl = 6 cm. The %3Darrow_forward
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningUniversity Physics Volume 3PhysicsISBN:9781938168185Author:William Moebs, Jeff SannyPublisher:OpenStax