Question

In: Physics

A light wave with an electric field amplitude of 2E0 and a phase constant of zero...

A light wave with an electric field amplitude of 2E0 and a phase constant of zero is to be

combined with one of the following waves:

wave A has an amplitude of E0 and a phase constant of zero

wave B has an amplitude of E0 and a phase constant of π

wave C has an amplitude of 2E0 and a phase constant of zero

wave D has an amplitude of 2E0 and a phase constant of π

wave E has an amplitude of 3E0 and a phase constant of π

Which of these combinations produces the least intensity?

Solutions

Expert Solution


Related Solutions

Consider an electromagnetic harmonic plane wave, where the peak electric field amplitude is 1 N/C. a)...
Consider an electromagnetic harmonic plane wave, where the peak electric field amplitude is 1 N/C. a) What is the irradiance of this plane wave? b) Consider such a wave with a frequency in the centre of the visible band of the electromagnetic spectrum. What is the number of photons passing through an area of 1 m2 in 1 second? (Assume the area the light is passing through is perpendicular to the wave’s propagation direction). c) Now consider two additional waves...
The electric field of an electromagnetic wave that propagates in a vacuum is given by: ?⃗...
The electric field of an electromagnetic wave that propagates in a vacuum is given by: ?⃗ (?, ?) = 2 cos (α? - ω?) ? + 2 sin (α? - ω?) ?, ?? (?/?); ???? α ? ω ??? ?????????? a) What is the amplitude E0 of the electric field, its angular frequency, period, frequency f, wave number | ?⃗ |, wavelength, its speed u and its phase constant φ? b) I) Determine the electric field in the x-y plane...
A. If the electric field E is zero at a given point, must the electric potential...
A. If the electric field E is zero at a given point, must the electric potential V also equal zero at that point? Explain your reasoning and give an example to prove your answer. B. A positive charge moves in the direction of a uniform electric field. Does its potential energy increase or decrease? Does the electric potential increase or decrease? Explain your reasoning. C. If the electric potential at some point is zero, does it follow that there are...
The components of the electric field in an electromagnetic wave traveling in vacuum are described by...
The components of the electric field in an electromagnetic wave traveling in vacuum are described by Ex = 0, Ey = 0, and Ez = 2.84 sin(8.73x - ωt) V/m, where x is measured in meters and t in seconds. Calculate the frequency of the wave. Tries 0/99 Calculate the wavelength of the wave. Tries 0/99 Calculate the amplitude of the magnetic field of the wave. Tries 0/99 Calculate the intensity of the wave. Tries 0/99
Derive wave equations or the electric field and magnetic field in vacuum. (Refer to Griffiths "Introduction...
Derive wave equations or the electric field and magnetic field in vacuum. (Refer to Griffiths "Introduction to electrodynamics" Chapter 9.2.1)
1.A wave of amplitude 0.36 m interferes with a second wave of amplitude 0.21 m traveling...
1.A wave of amplitude 0.36 m interferes with a second wave of amplitude 0.21 m traveling in the same direction. (a) What is the largest resultant amplitude that can occur, and under what conditions will this maximum arise? ?m The two waves interfere destructively. The two waves interfere constructively.      (b) What is the smallest resultant amplitude that can occur, and under what conditions will this minimum arise? ?m The two waves interfere destructively.The two waves interfere constructively. 2.On a hot...
Prove that Maxwell’s equations yield the wave equation for the electric field [HINT: ∇ × (∇×...
Prove that Maxwell’s equations yield the wave equation for the electric field [HINT: ∇ × (∇× ) = ∇(∇·) − ∇ · ∇]
a. Write an expression for the electric field vector of a uniform plane wave in free...
a. Write an expression for the electric field vector of a uniform plane wave in free space that is propagating in the direction given by a line from the origin to the point (3,0,4) and that is linearly polarized along the y-direction. It has a wavelength of 2 �m and reaches its positive maximum amplitude of 20 V/m at a distance of 1 m from the origin at t = 0 s. b. Compute the irradiance of this wave.
A plane electromagnetic wave with magnetic field amplitude 0.02 T is propagating through a vacuum. What...
A plane electromagnetic wave with magnetic field amplitude 0.02 T is propagating through a vacuum. What is the electric field amplitude?                                B) What is the magnitude of the Poynting vector? C. If the wavelength is 500 nm what is the wave frequency and the energy of a single photon? D. How many of these photons must pass through a square meter each second to yield the power flux calculated in part B?
At a certain location, electromagnetic wave 1 is measured to have an average electric field of...
At a certain location, electromagnetic wave 1 is measured to have an average electric field of Eav = 152 N/C, and electromagnetic wave 2 is measured to have an average magnetic field of Bav = 0.87 µT. a. (5 points) Calculate the average intensity of each wave. b. (5 points) If the electromagnetic waves are being measured 0.54 m from their light sources (assume that they are emitting light uniformly in all directions), what average power is each source emitting?...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT