Alpha particles of kinetic energy 6.2 MeV are incident at a rate of 3.1 x 107 per second on a copper foil of thickness 3.1 x 10-6 m. A circular detector of diameter 1.0 cm is placed 11 cm from the foil at an angle of 30° with the direction of the incident alpha particles. At what rate does the detector measure scattered alpha particles? (The molar mass of copper is 63.5 g/mol and its density is 8.9 g/cm³.)

Alpha particles of kinetic energy 6.2 MeV are incident at a rate of 3.1 x 107 per second on a copper foil of thickness 3.1 x 10-6 m. A circular detector of diameter 1.0 cm is placed 11 cm from the foil at an angle of 30° with the direction of the incident alpha particles. At what rate does the detector measure scattered alpha particles? (The molar mass of copper is 63.5 g/mol and its density is 8.9 g/cm³.)

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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