College Physics
1st Edition
ISBN: 9781938168000
Author: Paul Peter Urone, Roger Hinrichs
Publisher: OpenStax College
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Textbook Question
Chapter 24, Problem 9PE
Find the frequency range of visible light, given that it encompasses wavelengths from 330 to 760 nm.
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Chapter 24 Solutions
College Physics
Ch. 24 - The direction of the electric field shown in each...Ch. 24 - Is the direction of the magnetic field shown in...Ch. 24 - Why is the direction of the current shown in each...Ch. 24 - In which situation shown in Figure 24.24 will the...Ch. 24 - In which situation shown in Figure 24.25 will the...Ch. 24 - Should the straight wire antenna of a radio he...Ch. 24 - Under what conditions might wires in a DC circuit...Ch. 24 - Give an example of interference of electromagnetic...Ch. 24 - Figure 24.26 shows the interference pattern of two...Ch. 24 - Can an antenna be any length? Explain your answer.
Ch. 24 - If you live in a region that has a particular TV...Ch. 24 - Explain why people who have the lens of their eye...Ch. 24 - How do ?uorescent soap residues make clothing look...Ch. 24 - Give an example of resonance in the reception of...Ch. 24 - Illustrate that the size of details of an object...Ch. 24 - Why don't buildings block radio waves as...Ch. 24 - Make a list of some everyday objects and decide...Ch. 24 - Your friend says mat more patterns and colors can...Ch. 24 - The rate at which information can be transmitted...Ch. 24 - Give an example of energy carried by an...Ch. 24 - In an MRI scan, a higher magnetic field requires...Ch. 24 - Laser vision correction often uses an excimer...Ch. 24 - Verify that the correct value for the speed of...Ch. 24 - Show that, when SI units for 0 and 0 are entered,...Ch. 24 - What is the maximum electric field strength in an...Ch. 24 - The maximum magnetic field strength of an...Ch. 24 - Verify the units obtained for magnetic field...Ch. 24 - (a) Two microwave frequencies are authorized for...Ch. 24 - (a) Calculate the range of wavelength for AM radio...Ch. 24 - A radio station utilizes frequencies between...Ch. 24 - Find the frequency range of visible light, given...Ch. 24 - Combing your hair leads to excess electrons on the...Ch. 24 - Electromagnetic radiation having a 15.0m...Ch. 24 - Approximately what is the smallest detail...Ch. 24 - A radar used to detect the presence of aircraft...Ch. 24 - Some radar systems detect the size and shape of...Ch. 24 - Determine the amount of time it takes for X-rays...Ch. 24 - If you wish to detect details of the size of atoms...Ch. 24 - If the Sun suddenly turned off, we would not know...Ch. 24 - Distances in space are often quoted in units of...Ch. 24 - A certain 50.0-Hz AC power line radiates an...Ch. 24 - During normal bee?ng, the heat creates a maximum...Ch. 24 - (a) The ideal size (most efficient) for a...Ch. 24 - (a) What is the wavelength of 100MHz radio waves...Ch. 24 - (a) What is the frequency at the 193-nm...Ch. 24 - TV-reception antennas for VHF are constructed with...Ch. 24 - Conversations with astronauts on lunar walks had...Ch. 24 - Lunar astronauts placed a reflector on the Moon's...Ch. 24 - Radar is used to determine distances to various...Ch. 24 - Integrated Concepts (a) Calculate the ratio of the...Ch. 24 - Integrated Concepts (a) Calculate the rate in...Ch. 24 - What is the intensity of an electromagnetic wave...Ch. 24 - Find the intensity of an electromagnetic wave...Ch. 24 - Assume the helium-neon lasers commonly used in...Ch. 24 - An AM radio transmitter broadcasts 50.0 kW of...Ch. 24 - Suppose the maximum safe intensity of microwaves...Ch. 24 - A 2.50-m-diameter university communications...Ch. 24 - Lasers can be constructed that produce an...Ch. 24 - Show that for a continuous sinusoidal...Ch. 24 - Suppose a source of electromagnetic waves radiates...Ch. 24 - Integrated Concepts An LC circuit with a 5.00pF...Ch. 24 - Integrated Concepts What capacitance is needed in...Ch. 24 - Integrated Concepts Police radar determines the...Ch. 24 - Integrated Concepts Assume the mostly infrared...Ch. 24 - Integrated Concepts On its highest power se1ting,...Ch. 24 - Integrated Concepts Electromagnetic radiation from...Ch. 24 - Integrated Concepts A 200-turn flat coil of wire...Ch. 24 - Integrated Concepts If electric and magnetic field...Ch. 24 - Unreasonable Results A researcher measures the...Ch. 24 - Unreasonable Results The peak magnetic field...Ch. 24 - Unreasonable Results An LC circuit containing a...Ch. 24 - Unreasonable Results An LC circuit containing a...Ch. 24 - Create Your Own Problem Consider electromagnetic...Ch. 24 - Create Your Own Problem Consider the most recent...
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- The electric field of an EM wave in vacuum is given by En = 30 cos (27 × 10°t + 3); Ey = 0; Ez = 0; where E is in volts/meter, t in seconds, and x in meters. Determine the frequency f, the wavelength A, the direction of propagation of the wave, the direction and amplitude of the magnetic field.arrow_forwardFor items 2 and 3, consider an EM wave in vacuum which has an electric field given by [(e rad Ē(r, t) = (600 V/m) cos (2 x + wt k 3. What is the magnetic field expression of the EM wave? A. B(x, t) = (2 x 10–6 T) cos rad x + wt (+j) B. B(x,t) = (2 × 10-6 T) cos (2 x 107: [(e rad x + wt (+K) m С. В(а, t) — (1.8x 1011 T) сos 2 x 107 rad x + wt (-j) D. B(x,t) = (1.8 × 1011 T) cos 2 x 107 rad x + wt (+k) marrow_forwardWhat are the wavelengths of (a) X-rays of frequency 2.0 × 1017 Hz? (b) Yellow light of frequency 5.1 × 1014 Hz? (c) Gamma rays of frequency 1.0 × 1023 Hz?arrow_forward
- If a light wave has an electric field strength of 437.3 V/m, what is the magnetic field strength in a vacuum? Express your answer in micro Tesla ( uT =*10^ ^ -6) and to 3 decimal placesarrow_forwardAssume the mostly infrared radiation from a heat lamp acts like a continuous wave with wavelength 1.50 µm. (a) If the lamp's 205 W output is focused on a person's shoulder, over a circular area 24.0 cm in diameter, what is the intensity in W/m²? W/m? (b) What is the peak electric field strength in kV/m? kV/m (c) Find the peak magnetic field strength in µT. (d) How long will it take in seconds to increase the temperature of the 3.80 kg shoulder by 2.00°C, assuming no other heat transfer and given its specific heat is 3.47 × 103 J/(kg · °C)?arrow_forwardA dish antenna having a diameter of 16.0 m receives (at normal incidence) a radio signal from a distant source as shown in the figure below. The intensity of the radiation received by the antenna is 3.79 x 10-17 W/m². What is the power received by the antenna? a) 3.79 x 10-17 W b) 7.62 x 10-15 W c) 2.35 x 10-18 W d) 9.59 x 10-14 W d) None of these. Write your ownarrow_forward
- consider an EM wave in vacuum which has an electric field given by Ē(x, t) = (600 V /m) cos rad x + wt k m What is the magnetic field expression of the EM wave? A. B(x,t) = (2 × 10–6 T) cos | (2 x 107 x + wt (+j) m B. B(x,t) = (2 × 10–6 T) cos 2 x 107 rad x + wt|(+k) m C. B(x, t) = (1.8 × 101 T) cos 2 x 107. rad x + wt|(-j) m D. B(x,t) = (1.8 × 1011 T) cos rad x +wt (+k) 2 × 107 marrow_forwardInitial conditions are frequency 5 x10^6 Hz and current 1.5 A A magnetic far field of an antenna has the form B = (B_0sinθ/r) x (sin(kr − ωt)e_ϕ.) a) What is the phase of the wave at r = 6m when t = 0. b)Find the associated electric field and show a method to check this.arrow_forwardFind the range in wavelengths (in vacuum) for visible light in the frequency range between 4x1014 Hz (red light) and 7.9 x1014 Hz (violet light). Express the answers in nanometer. (1 nm = 10-9m)arrow_forward
- An FM station broadcasts classical music at 96.0 MHz (megahertz, or 106 Hz). Find the wavelength (in m, nm, and ) of these radio waves.arrow_forwardConsider a highly polished reflective surface. WHat would be the maximum radiation pressure excerted by sunlight in space (S = 1350W /m²). O 0.12PA 4.5 × 10–5 Pa 9.0 × 10–6Pa 2.3 x 10-6 Pa O 1.4 x 10-² Paarrow_forward. Consider an EM wave in vacuum which has an electric field given by: Ē(x, t) = Eo sin(kx + wt)ĵ where Eo, k,and w are positive constants. What are the respective directions of the magnetic field and EM wave propagation at \(t = 0 \) and \(x = 0 \)? A. -k, +i OB. +k, -i OC. +k, -Ĵ O D. -k, -iarrow_forward
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