Taller Fisica Moderna Brayan Felipe Bohorquez Ocampo Juan Sebastian Bello Mendez Juan José García Robles Edwin Steven Chavez Yomayusa Harry Esteban Pérez Suarez Eliana Stefania Niño Prada Brayan David Motta Prado juans.bellom@ecci.edu.co brayanf.bohorquezo@ecci.edu.co Juanj.garciar@gmail.com edwins.chavezy@ecci.edu.co Física Moderna Facultad de ingeniería Ingeniería mecánica Universidad ECCI, Bogotá, Colombia Septiembre 2022 1. Estimate the peak wavelength of light issuing from the pupil of the human eye (which approximates a blackbody) assuming normal body temperature. 2. A particular radiating cavity has the maximum of its spectra distribution of radiated power at a wavelength of 27.0μm (in the infrared region of the spectrum). The temperature is then changed so that the total power radiated by the cavity doubles. (a) Compute the new temperature. (b) At what wavelength does the new spectral distribution have its maximum value? 7. How much total kinetic energy will an electron-positron pair have if produced by a 2.67 MeV photon? 8. A gamma-ray photon produces an electron and a positron, each with a kinetic energy of 375 keV. Determine the energy and wavelength of the photon.
