23. By definition, what is the common thing all light waves in your polarizing sunglasses have?...
23. By definition, what is the common thing all light waves in your polarizing sunglasses have?
a) all of their magnetic field components oscillate in the same direction
b) all of their electric field components oscillate in the same direction
c) they all have the same amplitude
d) they all have the same wavelength
e) they all have the same frequency and amplitude
Homework Answers
The lenses of the sunglasses have polarizing filters that are oriented vertically with respect to the frames. Hence, only light waves which have their electric field vectors oriented in the same direction as the polarizing lenses are passed through.Hence, option B) is correct
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23. By definition, what is the common thing all light waves in
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Unpolarized light passes through two polarizing filters. After passing through the first filter the intensity of...
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Part A: An electromagnetic wave is propagating in the positive x direction. At a given moment...
Part A:
An electromagnetic wave is propagating in the positive
x direction. At a given moment in time, the magnetic field
at the origin points in the positive y direction. In what
direction does the electric field at the origin point at that same
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The figure shows the electromagnetic field as a function of
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Suppose two plane waves of light with electric field amplitudes E1 and E2 arrive at a...
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A plane electromagnetic wave, with wavelength 2.4 m, travels in vacuum in the positive direction ...
A plane electromagnetic wave, with wavelength 2.4 m, travels in
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1. Suppose two plane waves of light with electric field amplitudes E1 and E2 arrive at...
1. Suppose two plane waves of light with electric field amplitudes E1 and E2 arrive at a detector at time t having travelled different distances z1 and z2. Assume the field vectors have the same polarization direction p. The fields of the two plane waves at the detector individually are Eipcos(ot - kzi) and E.pcos(at-kz2 ) . Here the wavenumber is k-2πίλ and the angular frequency is ω ck-2πο:/v , where λ is the wavelength, с is the speed, and...
Unpolarized light passes through two polarizing filters. After passing through the first filter the intensity of the light (11) is 17 W/m2. The first filter is vertical (0 degrees), while the second filter is angled at 34 degrees. What is the new intensity of the light? If you have unpolarized light passing through two polarizing filters that are lined up to the same direction. How can you rotate them to block all light from passing through? rotate one by 45°...
7. An EM wave is produced and has the following waves: E = Emax sin(kx-1200x10 st) B= -2x10 sin(kx -t) in some direction a. find all the missing information in the electric and magnetic waves and rewrite them. b. What direction does the wave travel in? What direction is the magnetic field? c. What is the average intensity of the wave at its source? d. What kind of EM wave is this? How is it produced? e. The wave is...
Light, radiant heat (infrared radiation), X rays, and radio waves are all examples of traveling electromagnetic waves. Electromagnetic waves comprise combinations of electric and magnetic fields that are mutually compatible in the sense that the changes in one generate the other. The simplest form of a traveling electromagnetic wave is a plane wave. For a wave traveling in the x direction whose electric field is in the y direction, the electric and magnetic fields are given by Ē = E,...
Part A:
An electromagnetic wave is propagating in the positive
x direction. At a given moment in time, the magnetic field
at the origin points in the positive y direction. In what
direction does the electric field at the origin point at that same
moment?
Positive x
Negative x
Positive y
Negative y
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Negative z
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Homework 3A: Standing Waves 1. Two waves propagate in one direction on a stretched rope. The frequency of the waves is 120 Hz. Both have the same amplitude of 4 cm and wavelength of 0.04 m. (a) Determine the amplitude of the resultant wave if the two original waves differ in phase by Tm/3? (b) What is the phase difference between the two waves if the amplitude of the resultant wave is 0.05 cm? 2. Two...
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A plane electromagnetic wave, with wavelength 2.4 m, travels in
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