Physics A multiple-choice quiz consists of: 10 QuestionsQuestions are selected randomly from a collection of 20 questions. More Questions You will get deferent questions every time you take the quiz. Correct AnswersThere could be more than one correct answer, select all that apply.Skip QuestionsYou are allowed to scroll backward and forward before submitting your answers.10 MinutesThe quiz has a time limit. Time's up You can still submit your answers after the allowed period of time has ended . When ready, click Next to start the quiz. Name (Required) Email (Optional) Twitter (Optional) 1. One of two or more different nuclides having the same mass number is called: Isotone Isobar Isomer Isotope 2. Radioactive decay is the process by which an unstable atomic nucleus loses energy by emitting ionizing radiation. The emission is described as spontaneous meaning: The nucleus decays after collision with another particle or atom The nucleus decays without collision with shielding material The nucleus decays after collision with shielding material The nucleus decays without collision with another particle or atom 3. If the sample volume of a given activity is increased, the counting efficiency of the well counter will: Not change Approach 0 Decrease Increase 4. An atom with an unstable nucleus is called a: Radiopharmaceutical Radiochemical Radionuclide Radio wave 5. Elements with same atomic number and different atomic mass number are called? Isomers Isotopes Isotones Isobars 6. The ratio of net counts in the photopeak to net counts in the entire spectrum is called: Photopeak window Energy resolution Energy constant Photopeak efficiency 7. When only image quality is considered, the best possible distance between the collimator and the patient’s body for a gamma-camera equipped with HRES collimator is: Half the collimator diameter Contact 10 cm 1 in 8. Which of the following is the principal decay mode of Tc-99m? Pair production Beta minus Electron capture Isomeric transition 9. Which of the following sentences correctly describes a positron? A particle having a mass equal to the proton and no charge A particle having a mass equal to the electron but opposite charge A particle having a mass equal to the electron and no charge A particle having a mass equal to the proton but opposite charge 10. The nucleus is composed of two types of particles called: Quarks and protons Electrons and quarks Neutrons and protons Protons and electrons 1 out of 10 Time is Up! Time's up By Nasser AlMutairi|2021-03-31T11:37:09+03:00March 31st, 2021| Share This Post With Others! FacebookTwitterLinkedInWhatsAppPinterestEmail About the Author: Nasser AlMutairi Senior Nuclear Medicine Specialist at Hafar Al-Batin Central Hospital, Founder of NuclearMed Website. Leave a Reply Cancel reply
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