Suppose an electron and a photon have the same energy and wavelength. (a) Do they also...
Suppose an electron and a photon have the same energy and wavelength.
(a) Do they also have the same momentum? Support your answer.
(b) If it is assumed the electron is nonrelativistic, what is the numeric value that would be calculated for the wavelength?
(c) What is the numeric value of the photon energy associated with the wavelength found in part (b)?
(d) Determine whether or not the electron is truly non-relativistic.
Homework Answers
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Suppose an electron and a photon have the same energy and
wavelength.
(a) Do they also...
PC8.Q1 014] A photon with wavelength 0.120 nm scatters off an electron that is initially at...
PC8.Q1 014] A photon with wavelength 0.120 nm scatters off an electron that is initially at rest. The speed of the recoiling, non-relativistic electron is 7.00x106 m/s immediately after the collision. a) Name this process and explain its significance for the b) Calculate the energy of the incoming photon and the c) Based on energy conservation calculate the energy of development of modern physics. [1] momentum of the recoiling electron. [2] the outgoing (scattered) photon and its wavelength. [31
1) Consider light in the near-infrared regime with a wavelength = 1000 nm. (a) What is...
1) Consider light in the near-infrared regime with a wavelength
= 1000 nm.
(a) What is the energy of a photon at this wavelength?
(b) Consider an electron that has a kinetic energy that equals the
photon energy in part (a). Calculate the electron momentum and
compare it to the momentum of the photon from part (a). Is the
momentum of the electron larger or smaller than the momentum of the
photon?
Hint: You can use non-relativistic equations for the...
A photon moving in the +x-direction, scatters off a free stationary electron. The wavelength of the...
A photon moving in the +x-direction, scatters off a free stationary electron. The wavelength of the incident photon is 0.0410 nm. After the collision, the electron moves at an angle α below the +x-axis, while the photon moves at an angle θ = 73.3° above the +x-axis. (For the purpose of this exercise, assume that the electron is traveling slow enough that the non-relativistic relationship between momentum and velocity can be used.) (a) What is the angle α (in degrees)?...
When a photon collides with an electron and gives it energy, what happens to the photon...
When a photon collides with an electron and gives it energy, what happens to the photon after bouncing from the electron? a. the photon frequency remains the same. b. the photon wavelength decreases. c. the photon wavelength remains the same. d. the photon wavelength increases. e. the photon frequency increases.
A nonrelativistic electron has a larger de Broglie wavelength than a nonrelativistic proton. Which one of...
A nonrelativistic electron has a larger de Broglie wavelength than a nonrelativistic proton. Which one of the following statements about these particles must be accurate? A) The proton has more momentum than the electron B) Both particles have the same kinetic energy. C) The proton has more kinetic energy than the electron. D) The electron has more kinetic energy than the proton. E) The electron has more momentum than the proton. Answer is A. Pleas explain step by step how...
the annihilation of an electron and a positron, each with negligible kinetic energy, results in the production of two photons with the same energy. (a) Determine the energy of each photon in MeV. MeV...
the annihilation of an electron and a positron, each with negligible kinetic energy, results in the production of two photons with the same energy. (a) Determine the energy of each photon in MeV. MeV (b) Determine the wavelength of each photon. m
(a)Calculate the wavelength (in m) of a photon that has the same momentum as a proton...
(a)Calculate the wavelength (in m) of a photon that has the same momentum as a proton moving at 4.11% of the speed of light. (b)What is the energy of the photon in MeV? (c)What is the kinetic energy of the proton in MeV?
Based on the energy diagram below. which photon will have the longest wavelength wam Photon A...
Based on the energy diagram below. which photon will have the longest wavelength wam Photon A Energy w Photon B w Photon C Select one: Photon A Photon B All of these photons have the same wavelength Photon C Check
B6.) In the photoelectric effect a photon of wavelength 2 imparts all of its energy to...
B6.) In the photoelectric effect a photon of wavelength 2 imparts all of its energy to a free electron in a metal. Assume an incident photon has a wavelength of 440 nm. (a) What is the color? (b) What is its energy? (C) Find the wavelength of an electron after absorbing the photon (d) Suppose the separation potential between the electron and the means surface is 1V. What will be the wavelength of the electron upon emergence from the metal?
(a) Calculate the momentum (in kg · m/s) of a photon having a wavelength of 8.38...
(a) Calculate the momentum (in kg · m/s) of a photon having a wavelength of 8.38 µm. ___ kg · m/s (b) Find the velocity (in m/s) of an electron having the same momentum. ___ m/s c) What is the kinetic energy (in J) of the electron? ___ J How does it compare with the energy of the photon? Ephoton/KEelectron = _____ please help with these questions, thanks!
PC8.Q1 014] A photon with wavelength 0.120 nm scatters off an electron that is initially at rest. The speed of the recoiling, non-relativistic electron is 7.00x106 m/s immediately after the collision. a) Name this process and explain its significance for the b) Calculate the energy of the incoming photon and the c) Based on energy conservation calculate the energy of development of modern physics. [1] momentum of the recoiling electron. [2] the outgoing (scattered) photon and its wavelength. [31
1) Consider light in the near-infrared regime with a wavelength
= 1000 nm.
(a) What is the energy of a photon at this wavelength?
(b) Consider an electron that has a kinetic energy that equals the
photon energy in part (a). Calculate the electron momentum and
compare it to the momentum of the photon from part (a). Is the
momentum of the electron larger or smaller than the momentum of the
photon?
Hint: You can use non-relativistic equations for the...
Based on the energy diagram below. which photon will have the longest wavelength wam Photon A Energy w Photon B w Photon C Select one: Photon A Photon B All of these photons have the same wavelength Photon C Check
B6.) In the photoelectric effect a photon of wavelength 2 imparts all of its energy to a free electron in a metal. Assume an incident photon has a wavelength of 440 nm. (a) What is the color? (b) What is its energy? (C) Find the wavelength of an electron after absorbing the photon (d) Suppose the separation potential between the electron and the means surface is 1V. What will be the wavelength of the electron upon emergence from the metal?
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