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. An atom with an unstable nucleus is called a: Radiopharmaceutical Radiochemical Radio wave Radionuclide 2. Which of the following sentences correctly describes a positron? A particle having a mass equal to the electron but opposite charge A particle having a mass equal to the proton but opposite charge A particle having a mass equal to the proton and no charge A particle having a mass equal to the electron and no charge 3. 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: Contact 1 in 10 cm Half the collimator diameter 4. If the sample volume of a given activity is increased, the counting efficiency of the well counter will: Approach 0 Decrease Not change Increase 5. Which of the following best defines isotopes of an element? Atoms with same number of protons, electrons and neutrons. Atoms with same number of protons and electrons but different number of neutrons. Atoms with same number of protons and neutrons but different number of electrons. Atoms with same number of neutrons and electrons but different number of protons. 6. One of two or more different nuclides having the same mass number is called: Isotone Isobar Isotope Isomer 7. Which of the following is the principal decay mode of Tc-99m? Electron capture Isomeric transition Pair production Beta minus 8. The minimum amount of energy needed to overcome the forces holding the atom together is called: Thermal energy Kinetic energy Binding energy Holding energy 9. The nucleus is composed of two types of particles called: Protons and electrons Electrons and quarks Neutrons and protons Quarks and protons 10. In isomeric transition decay, the extra energy in the nucleus is released by the emission of: Electrons Gamma photons Neutrons X-rays 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 ReplyCancel reply
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