In a particular case of Compton scattering, a photon collides with a free electron and scatters backwards. The wavelength after the collision is exactly double the wavelength before the collision. What is the wavelength of the incident photon? (mel = 9.11 × 10-31 kg, h = 6.626 × 10-34 J ∙ s, c = 3.00 × 108 m/s) Group of answer choices 1.2 pm 4.8 pm 3.6 pm 2.4 pm

In a particular case of Compton scattering, a photon collides with a free electron and scatters backwards. The wavelength after the collision is exactly double the wavelength before the collision. What is the wavelength of the incident photon? (mel = 9.11 × 10-31 kg, h = 6.626 × 10-34 J ∙ s, c = 3.00 × 108 m/s) Group of answer choices 1.2 pm 4.8 pm 3.6 pm 2.4 pm

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter6: Photons And Matter Waves

Section: Chapter Questions

Problem 137AP: A laser with a power output of 2.00 mW at a 400-nm wavelength is used to project a beam of light...

See similar textbooks

Similar questions

A laser with a power output of 2.00 mW at a 400-nm wavelength is used to project a beam of light onto a calcium photoelectrode. (a) How many photoelectrons leave the calcium surface per second? (b) What power is carried away by ejected photoelectrons, given that the work function of calcium is 2.31 eV? (c) Calculate the photocurrent. (d) If the photoelectrode suddenly becomes electrically insulated and the setup of two electrodes in the circuit suddenly starts to act like a 2.00-pF capacitor, how long will current flow before the capacitor voltage stops it?
a.) Find the frequency in Hertz of radiation with energy of 2.179 x 10-18 J per photon. b.) What frequency of light would be needed to make an electron in a Hydrogen atom jump from n=1 to n=3? c.) A spectral line is measured to have a wavelenght of 1000nm. Is this within the Balmer series?
MerCadTel devices are like digital cameras, but for infrared radiation.a) Suppose you observe an object using a wavelength of 5 microns (5e-6m). What is theenergy of these photons?b) If the work function of the MerCadTel substrate (the detector surface) is 0.13eV, whatis the kinetic energy of the electron that is liberated from the detector?c) What is the De Broglie wavelength of the liberated electron? The mass of the electronis 9.1e-31kg, 1 eV=1.6e-19 J, and h = 6.626e-34 Js. Hint: The electron is not movingrelativistically.
For the thermal radiation from an ideal blackbody radiator with a surface temperature of 2000 K, let Ic represent the intensity per unit wavelength according to the classical expression for the spectral radiancy and IP represent the corresponding intensity per unit wavelength according to the Planck expression.What is the ratio Ic/IP for a wavelength of (a) 400 nm (at the blue end of the visible spectrum) and (b) 200 mm (in the far infrared)? (c) Does the classical expression agree with the Planck expression in the shorter wavelength range or the longer wavelength range?
The work function for indium is 4.12 eV. (a) Convert the value of the work function from electron volts to joules. J(b) Find the cutoff frequency for indium. Hz(c) What maximum wavelength of light incident on indium releases photoelectrons from the indium's surface? nm(d) If light of energy 8.64 eV is incident on indium, what is the maximum kinetic energy of the ejected photoelectrons? Give the answer in electron volts. eV(e) For photons of energy 8.64 eV, what stopping potential would be required to arrest the current of photoelectrons? V
Part A: If X=2.44 micrometers, what is the surface temperature of object A? Enter the numerical values in SI units. Part B: Which statement(s) characterize(s) the photons radiated by the object A? (Check any/all correct answers) a) The maximum wavelength of the mitted photons is X. b) All the emitted photons have a wavelength of X. c) Most (but not all) of the emitted photons have a wavelength of X.
A particular star has a radius of 8.46 ✕ 108 m. The peak intensity of the radiation it emits is at a wavelength of 679 nm. (a) What is the energy (in J) of a photon with this wavelength? answer in J (b) What is the star's surface temperature (in K)? (Round your answer to at least the nearest integer.) answer in K (c) At what rate (in W) is energy emitted from the star in the form of radiation? Assume the star is a blackbody, with emissivity e = 1. answer in W (d) Using the results from parts (a) and (c), estimate the rate (in photons/s) at which photons are emitted by the star. answer in photon/s
(a) In an X-ray tube, do you expect the wavelength of the characteristic X-rays to increase, decrease, or stay thesame if the energy of the electrons striking the target is increased?(b) Choose the best explanation from among the following:I. Increasing the energy of the incoming electrons will increasethe wavelength of the emitted X-rays.II. When the energy of the incoming electrons is increased, theenergy of the X-rays is also increased; this, in turn, decreasesthe wavelength.III. The wavelength of characteristic X-rays depends only on thematerial used in the metal target, and does not change if theenergy of incoming electrons is increased.
(a) If the average frequency emitted by a 120 W light bulb is 5.00 * 1014 Hz and 10.0% of the input power is emitted as visible light, approximately how many visible-light photons are emitted per second? (b) At what distance would this correspond to 1.00 * 1011 visible-light photons per cm2 per second if the light is emitted uniformly in all directions?
What is the de Broglie wavelength of(a) a bullet of mass 0.040 kg travelling at the speed of 1.0 km/s,(b) a ball of mass 0.060 kg moving at a speed of 1.0 m/s, and(c) a dust particle of mass 1.0 × 10-9 kg drifting with a speed of 2.2 m/s?
Part a) Find the total energy (in J) of 2.158 x 10^19 photons of red light (λ=675 nm)? Part b) Find the work function (in kJ/mol) for a metal if its threshold frequency is 8.785 x 10^14 Hz?
I have a physics question as follows: After a 0.777 nm x-ray photon scatters from a free electron, the electron recoils at 1.30 106 m/s.(a) What is the Compton shift in the photon's wavelength?(b) Through what angle is the photon scattered?