A photon of wavelength 2.0 nm Compton-scatters from an electron at an angle of 90°. What is the modified wavelength and the fractional change, ∆λ/λ ?
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A photon of wavelength 2.0 nm Compton-scatters from an electron at an angle of 90°. What is the modified wavelength and the fractional change, ∆λ/λ ?
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- A light source of wavelength λ illuminates a metal and ejects photo electrons with a maximum kinetic energy of 0.67 eV. A second light source with half the wavelength of the first ejects photoelectrons with a maximum kinetic energy of 3.3 eV. What is the work function of the metal? Answer in units of eV.You use 0.124 nm x-ray photons in a Compton-scattering experiment. At what angle is the wavelength of the scattered x rays 1.0% longer than that of the incident x rays? 70.6° 67.0° 60.7° 56.5°X-ray photons of wavelength 0.0248 nm are incident on a target and the Compton-scattered photons are observed at 80.0° above the photons' incident line of travel. [Use relativistic units for this problem!] (a) What is the wavelength of the scattered photons? nm (b) What is the momentum of the incident photons? eV/c What is the momentum of the scattered photons? eV/c (c) What is the kinetic energy of the scattered electrons? eV (d) What is the momentum (magnitude and angle) of the scattered electrons? eV/c
- A) After a 0.790 nm x-ray photon scatters from a free electron, the electron recoils with a speed equal to 1.59E+6 m/s. What was the Compton shift in the photon's wavelength? B) Through what angle was the photon scattered?Light with wavelength ? = 635 nm is incident on a metallic surface. Electrons are ejected from the surface. The maximum speed of these electrons is v = 4.40 ✕ 105 m/s. a) What is the work function of the metal (in eV)? b) What is the cutoff frequency for this metal (in Hz)?A beam of UV light with a wavelength of 197 nm falls onto a metal cathode. The stopping potential necessary to stop any electrons from reaching the anode is 2.08 V. What is the work function (W) of the cathode surface measured in eV?
- If a 7.0-keV photon scatters from a free proton at rest, what is the change in the photon's wavelength if the photon recoils at 90°?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 pmLight of wavelength > light. = 5.34 × 10¹¹m is incident on an electron and undergoes Compton scattering at an angle of 0 = 13.1° from the direction of the incident What is the magnitude of the momentum of the scattered photon? ×10-25 Js/m