Integrated Science
7th Edition
ISBN: 9780077862602
Author: Tillery, Bill W.
Publisher: Mcgraw-hill,
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Chapter 7.3, Problem 9SC
To determine
The nature of light that can explain the polarization behavior of light.
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An unpolarized beam of light is incident on a series of two polarizers whose polarization axes form 30°. If the intensity of the incident light is 40 W/cm2, what will its intensity be after passing through the second polarizer?
a. (120/√2) W/cm2
b. 40 W/cm2
c. 30 W/cm2
d. 20 W/cm2
e. 15 W/cm2
If a beam of polarized light has one-tenth of its initial intensity after passing through an analyzer, what is the angle between the axis of the analyzer and the initial amplitude of the beam? a. 68.214° b. 70.478 c. 71.565° d. 86.214°
g . Explain what the polarization of electromagnetic waves is. State two examples for a possiblepolarization of a wave as well as an example for its application.
Chapter 7 Solutions
Integrated Science
Ch. 7.1 - Prob. 1SCCh. 7.1 - Prob. 2SCCh. 7.1 - Prob. 3SCCh. 7.2 - Prob. 4SCCh. 7.2 - Prob. 5SCCh. 7.2 - Prob. 6SCCh. 7.2 - Prob. 7SCCh. 7.3 - Prob. 8SCCh. 7.3 - Prob. 9SCCh. 7.4 - Prob. 10SC
Ch. 7.4 - Prob. 11SCCh. 7.5 - Prob. 12SCCh. 7 - What determines if an electromagnetic wave emitted...Ch. 7 - Prob. 2CQCh. 7 - Prob. 3CQCh. 7 - Prob. 4CQCh. 7 - Prob. 5CQCh. 7 - Prob. 6CQCh. 7 - Prob. 7CQCh. 7 - Prob. 8CQCh. 7 - Prob. 9CQCh. 7 - Prob. 10CQCh. 7 - Prob. 11CQCh. 7 - Prob. 12CQCh. 7 - Prob. 13CQCh. 7 - Prob. 14CQCh. 7 - Prob. 15CQCh. 7 - Prob. 16CQCh. 7 - Prob. 17CQCh. 7 - Prob. 18CQCh. 7 - Prob. 1PEACh. 7 - Prob. 2PEACh. 7 - Prob. 3PEACh. 7 - Prob. 4PEACh. 7 - Prob. 5PEACh. 7 - Prob. 6PEACh. 7 - Prob. 7PEACh. 7 - Prob. 8PEACh. 7 - Prob. 9PEACh. 7 - Prob. 10PEACh. 7 - Prob. 1PEBCh. 7 - Prob. 2PEBCh. 7 - Prob. 3PEBCh. 7 - Prob. 4PEBCh. 7 - Prob. 5PEBCh. 7 - Prob. 6PEBCh. 7 - Prob. 7PEBCh. 7 - Prob. 8PEBCh. 7 - Prob. 9PEBCh. 7 - Prob. 10PEB
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- The Poynting vector describes a flow of energy whenever electric and magnetic fields are present. Consider a long cylindrical wire of radius r with a current I in the wire, with resistance R and voltage V. From the expressions for the electric field along the wire and the magnetic field around the wire, obtain the magnitude and direction of the Poynting vector at the surface. Show that it accounts for an energy flow into the wire from the fields around it that accounts for the Ohmic heating of the wire.arrow_forwardIf plane polarized light is sent through two polarizers, the first at 45 to the original plane of polarization and the second at 90 to the original plane of polarization, what fraction of the original polarized intensity passes through the last polarizer? (a) 0 (b) 14 (c) 12 (d) 18 (e) 110arrow_forwardIn Figure P37.52, suppose the transmission axes of the left and right polarizing disks are perpendicular to each other. Also, let the center disk be rotated on the common axis with an angular speed . Show that if unpolarized light is incident on the left disk with an intensity Imax, the intensity of the beam emerging from the right disk is I=116Imax(1cos4t) This result means that the intensity of the emerging beam is modulated at a rate four times the rate of rotation of the center disk. Suggestion: Use the trigonometric identities cos2=12(1+cos2) and sin2=12(1cos2). Figure P37.52arrow_forward
- The vector direction of the electromagnetic field in a propagating light wave is called __________ . a. the polarization b. the frequency c. the amplitude d. the propagation constant e. the phasearrow_forward10. A beam of light polarized along the y axis and moving along the +z axis passes through two polarizing sheets with axes of polarization oriented 30° and 70° measured clockwise from the positive direction of the y axis. The final intensity of the beam is found to be 61 W/m². What is the initial beam intensity? (1) 280 W/m² (2) 700 W/m² (3) 200 W/m² (4) 50 W/m² .2 (5) 140 W/m² 11. Light of wavelength 520 nm is incident perpendicularly on a diffraction grating having 200 lines/mm. What is the highestarrow_forwardIf the index of refraction of glass for red light is 1.45, what is the speed of a light, the speed of a photon, in the glass? The same as the speed it would have in a vacuum, that is the same as "c" Faster than the speed it would have in a vacuum by the factor 1.45 Dependent on the energy or power in the light Slower than the speed in vacuum by the factor 1/1.45arrow_forward
- ull OMANTEL 08:48 @ 82% A Ims.act.edu.om Question 15 Not yet answered Marked out of 1.00 P Flag question The concept of transmission of light used in optical fiber is a. Dispersion b. Total internal reflection С. Reflection d. Refraction Previous page Next page ( Announcements Jump to...arrow_forwardElectromagnetic waves in certain wavelength ranges interact with water molecules because the molecules have a large electric dipole moment. The electric field of the waveA. Exerts a net force on the water molecules.B. Exerts a net torque on the water molecules.C. Exerts a net force and a net torque on the water molecules.arrow_forwardOnly 13.0% of the intensity of a polarized light wave passes through a polarizing filter. What is the angle between the electric field and the axis of the filter?arrow_forward
- Unpolarized light of intensity 69 W/m2 passes through two polarizing filters. The first filter is vertical (0 degrees), while the 2nd filter is angled at 40 degrees. What is the new intensity of the light?arrow_forwardIn an electromagnetic wave, when the electric field, E, is a maximum, the magnetic field, B, is: a. at a value between its maximum or minimum. b. a minimum. c. any of these. d. zero. e. a maximum.arrow_forwardUnpolarized light with an Intensity of 90 W is incident on a polarizing filter. A) What is the intensity (in Watts) of the light that passes through the filter? B) The polarized light leaving the filter is incident on another polarizer with an axis of polarization rotated by 28 degrees from the original filter. What is the intensity of the light that passes through the second filter?arrow_forward
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