College Physics
3rd Edition
ISBN: 9780134201962
Author: Randall D. Knight, Brian Jones, Stuart Field
Publisher: Addison-Wesley
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 17, Problem 70GP
a.
To determine
To find: The diameter of the radar beam.
b.
To determine
To find: The average microwave intensity.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A radar for tracking aircraft broadcasts a 12 GHz microwave beam from a 2.0-m-diameter circular radar antenna. From a wave perspective, the antenna is a circular aperture through which the microwaves diffract.a. What is the diameter of the radar beam at a distance of 30 km?b. If the antenna emits 100 kW of power, what is the average microwave intensity at 30 km?
The 300-m-diameter Arecibo radio telescope detects radio waves with a 4.00 cm averagewavelength.(a) What is the angle between two just-resolvable pointsources for this telescope? (b) How close together could these point sources be at the 2million light year distance of the Andromeda galaxy?
1.
(a) The speed of a 500 nm light is 3 .00x10^8 m/s in vacuum and 1.95x10^8 m/s in a certain glass. What is theindex of refraction of the light?
(b) What is the frequency of the 500 nm light in a vacuum?
(c) What is the frequency of the 500 nm light in the glass?
(d)If the 500 nm light is incident on a flat boundary between the glass part in Ia and air (nair= 1.00) asshown, what is the angle of reflection? Sketch on the given diagram. Do the samework for the refracted ray.
Chapter 17 Solutions
College Physics
Ch. 17 - The frequency of a light wave in air is 5.3 1014...Ch. 17 - Rank in order the following according to their...Ch. 17 - The wavelength of a light wave is 700 nm in air;...Ch. 17 - A double-slit interference experiment shows...Ch. 17 - Figure Q17.5 shows the fringes observed in a...Ch. 17 - In a double-slit interference experiment,...Ch. 17 - Figure Q17.7 shows the viewing screen in a...Ch. 17 - Figure Q17.7 is the interference pattern seen on a...Ch. 17 - Figure Q17.9 shows the light intensity on a...Ch. 17 - Figure Q17.10 shows the light intensity on a...
Ch. 17 - Light with a wavelength of 600 nm is incident on a...Ch. 17 - White light is incident on a diffraction grating....Ch. 17 - Figure Q17.13 shows a light wave incident on and...Ch. 17 - A soap bubble usually pops because some part of it...Ch. 17 - An oil film on top of water has one patch that is...Ch. 17 - Should the antireflection coating of a microscope...Ch. 17 - Example 17.5 showed that a thin film whose...Ch. 17 - Prob. 18CQCh. 17 - Prob. 19MCQCh. 17 - The frequency of a light wave in air is 4.6 1014...Ch. 17 - Light passes through a diffraction grating with a...Ch. 17 - Blue light of wavelength 450 nm passes through a...Ch. 17 - Yellow light of wavelength 590 nm passes through a...Ch. 17 - Light passes through a 10-m-wide slit and is...Ch. 17 - Prob. 25MCQCh. 17 - You want to estimate the diameter of a very small...Ch. 17 - Prob. 1PCh. 17 - a. How long (in ns) does it take light to travel...Ch. 17 - A 5.0-cm-thick layer of oil (n = 1.46) is...Ch. 17 - A light wave has a 670 nm wavelength in air. Its...Ch. 17 - How much time does it take a pulse of light to...Ch. 17 - A helium-neon laser beam has a wavelength in air...Ch. 17 - Two narrow slits 50 m apart are illuminated with...Ch. 17 - Light from a sodium lamp (= 589 nm) illuminates...Ch. 17 - Two narrow slits are illuminated by light of...Ch. 17 - A double-slit experiment is performed with light...Ch. 17 - Light from a helium-neon laser (= 633 nm) is used...Ch. 17 - Two narrow slits are 0.12 mm apart. Light of...Ch. 17 - In a double-slit experiment, the distance from one...Ch. 17 - A diffraction grating with 750 slits/mm is...Ch. 17 - A 1.0-cm-wide diffraction grating has 1000 slits....Ch. 17 - Light of wavelength 600 nm illuminates a...Ch. 17 - A lab technician uses laser light with a...Ch. 17 - The human eye can readily detect wavelengths from...Ch. 17 - A diffraction grating with 600 lines/mm is...Ch. 17 - A 500 line/mm diffraction grating is illuminated...Ch. 17 - What is the thinnest film of MgF2 (n = 1.38) on...Ch. 17 - A very thin oil film (n = 1.25) floats on water (n...Ch. 17 - A film with n = 1.60 is deposited on glass. What...Ch. 17 - Antireflection coatings can be used on the inner...Ch. 17 - Solar cells are given antireflection coatings to...Ch. 17 - A thin film of MgF2 (n = 1.38) coats a piece of...Ch. 17 - Looking straight downward into a rain puddle whose...Ch. 17 - A helium-neon laser (= 633 nm) illuminates a...Ch. 17 - For a demonstration, a professor uses a razor...Ch. 17 - A 0.50-mm-wide slit is illuminated by light of...Ch. 17 - The second minimum in the diffraction pattern of a...Ch. 17 - What is the width of a slit for which the first...Ch. 17 - A 0.50-mm-diameter hole is illuminated by light of...Ch. 17 - Light from a helium-neon laser (= 633 nm) passes...Ch. 17 - You want to photograph a circular diffraction...Ch. 17 - Infrared light of wavelength 2.5 m illuminates a...Ch. 17 - An advanced computer sends information to its...Ch. 17 - Figure P17.38 shows the light intensity on a...Ch. 17 - Figure P17.38 shows the light intensity on a...Ch. 17 - Your friend has been given a laser for her...Ch. 17 - A double slit is illuminated simultaneously with...Ch. 17 - Figure P17.42 shows the light intensity on a...Ch. 17 - A laser beam of wavelength 670 nm shines through a...Ch. 17 - The two most prominent wavelengths in the light...Ch. 17 - A diffraction grating produces a first-order...Ch. 17 - A diffraction grating is illuminated...Ch. 17 - White light (400-700 nm) is incident on a 600...Ch. 17 - A miniature spectrometer used for chemical...Ch. 17 - Figure P17.49 shows the interference pattern on a...Ch. 17 - Figure P17.4919 shows the interference pattern on...Ch. 17 - Because sound is a wave, it is possible to make a...Ch. 17 - The shiny surface of a CD is imprinted with...Ch. 17 - If sunlight shines straight onto a peacock...Ch. 17 - The wings of some beetles have closely spaced...Ch. 17 - A diffraction grating having 500 lines/mm...Ch. 17 - Light emitted by element X passes through a...Ch. 17 - Light of a single wavelength is incident on a...Ch. 17 - A sheet of glass is coated with a 500-nm-thick...Ch. 17 - A soap bubble is essentially a thin film of water...Ch. 17 - A laboratory dish, 20 cm in diameter, is half...Ch. 17 - You need to use your cell phone, which broadcasts...Ch. 17 - Light from a sodium lamp ( = 589 nm) illuminates a...Ch. 17 - The opening to a cave is a tall, 30-cm-wide crack....Ch. 17 - A diffraction grating has 500 slits/mm. What is...Ch. 17 - Figure P17.65 shows the light intensity on a...Ch. 17 - Figure P17.65 shows the light intensity on a...Ch. 17 - Figure P17.67 shows the light intensity on a...Ch. 17 - One day, after pulling down your window shade, you...Ch. 17 - Prob. 70GPCh. 17 - A helium-neon laser ( = 633 nm), shown in Figure...Ch. 17 - In the laser range-finding experiments of Example...Ch. 17 - Prob. 73MSPPCh. 17 - Prob. 74MSPPCh. 17 - Prob. 75MSPP
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- (a) What is the ratio of the speed of red light to violet light in diamond, based on Table 1.2? (b) What is this ratio in polystyrene? (c) Which is more dispersive?arrow_forwardThe sun is 150,000,000 km from earth; its diameter is 1,400,000 km. A studentuses a 4.0 cm diameter lens with f = 10 cm to cast an image of the sun on a piece of paper.a. Where should the paper be placed to get a sharp image?b. What is the diameter of the image on the paper?c. The intensity of the incoming sunlight is 1050 W/m^2. What is the power of the lightcaptured by the lens?d. What is the intensity of sunlight in the projected image? Assume that all of the lightcaptured by the lens is focused into the imagearrow_forwardA sheet of glass is coated with a 500-nm-thick layer of oil (n = 1.42).a. For what visible wavelengths of light do the reflected waves interfere constructively?b. For what visible wavelengths of light do the reflected waves interfere destructively?c. What is the color of reflected light? What is the color of transmitted light?arrow_forward
- a. Find the size (in mm) of the smallest detail observable in human tissue with 11.5 MHz ultrasound. _____ mm b. Is its effective penetration depth great enough to examine the entire eye (about 3.00 cm is needed)? c. What is the effective penetration depth (in cm)? _____ cm d. What is the wavelength (in µm) of such ultrasound in 0°C air? _____ umarrow_forwardThe sun is 150,000,000 km from earth; its diameter is 1,400,000 km. A student uses a 4.0-cm-diameter lens with f = 10 cm to cast an image of the sun on a piece of paper.a. Where should the paper be placed to get a sharp image?b. What is the diameter of the image on the paper?c. The intensity of the incoming sunlight is 1050 W/m2. What is the power of the light captured by the lens?d. What is the intensity of sunlight in the projected image? Assume that all of the light captured by the lens is focused into the image.arrow_forwardA radio transmitter, generates spherical radio waves. If you determine the intensity of the waves to be I a distance r from the transmitter, what is the intensity a distance of 2r from the transmitter?arrow_forward
- The table contains data obtained during the single-slit microwave experiment with a slit width of 7 cm and a wavelength of 2.8 cm. To compare data like this with theory in Sec. 8.5, you will have to normalize both the intensity and the angular data. a) What is the normalized intensity I/I0 at 40∘? b)What is the normalized angle β/π at 25∘?arrow_forwardThe table contains data obtained during the single-slit microwave experiment with a slit width of 7 cm and a wavelength of 2.8 cm. To compare data like this with theory in Sec. 8.5, you will have to normalize both the intensity and the angular data. A. What is the normalized intensity I/I0 at 40∘? B. What is the normalized angle β/π at 25∘?arrow_forwardA soap bubble (n = 1.33) floating in air has the shape of a spherical shell with a wall thickness of 120 nm. (a) What is the wavelength of the visible light that is most strongly reflected? (b) Explain how a bubble of different thicknesscould also strongly reflect light of this same wavelength. (c) Find the two smallest film thicknesses larger than 120 nm that can produce strongly reflected light of the same wavelength.arrow_forward
- A monochromatic (i.e., single frequency) beam of light travels from material #1 into material #2, where n1 > n2. What is/are the relationships between the wave speeds and wavelengths of the beam in the two materials? Choose any one or more options that apply: 1. v1 < v2 2. λ1 < λ2 3. v1 = v2 4. λ1 = λ2 5. λ1 > λ2 6. v1 >v2arrow_forward(a) The planet Pluto and its Moon Charon are separatedby 19,600 km. Neglecting atmospheric effects, should the5.08-m-diameter Mount Palomar telescope be able to resolvethese bodies when they are 4.50×109km from Earth?Assume an average wavelength of 550 nm.(b) In actuality, it is just barely possible to discern that Plutoand Charon are separate bodies using an Earth-basedtelescope. What are the reasons for this?arrow_forward(a) A circular diaphragm 60 cm in diameter oscillates at a frequency of 25 kHz as an underwater source of sound used for submarine detection. Far from the source, the sound intensity is distributed as the diffraction pattern of a circular hole whose diameter equals that of the diaphragm.Take the speed of sound in water to be 1450 m/s and find the angle between the normal to the diaphragm and a line from the diaphragm to the first minimum. (b) Is there such a minimum for a source having an (audible) frequency of 1.0 kHz?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- University Physics Volume 3PhysicsISBN:9781938168185Author:William Moebs, Jeff SannyPublisher:OpenStaxPhysics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
University Physics Volume 3
Physics
ISBN:9781938168185
Author:William Moebs, Jeff Sanny
Publisher:OpenStax
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Laws of Refraction of Light | Don't Memorise; Author: Don't Memorise;https://www.youtube.com/watch?v=4l2thi5_84o;License: Standard YouTube License, CC-BY