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. 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 without collision with another particle or atom The nucleus decays after collision with shielding material None 2. An atom with an unstable nucleus is called a: Radionuclide Radio wave Radiopharmaceutical Radiochemical None 3. The nucleus is composed of two types of particles called: Quarks and protons Protons and electrons Neutrons and protons Electrons and quarks None 4. One of two or more different nuclides having the same mass number is called: Isomer Isotope Isotone Isobar None 5. Which of the following sentences correctly describes a positron? A particle having a mass equal to the electron and no charge A particle having a mass equal to the proton and no charge A particle having a mass equal to the proton but opposite charge A particle having a mass equal to the electron but opposite charge None 6. Which of the following is the principal decay mode of Tc-99m? Electron capture Isomeric transition Beta minus Pair production None 7. Elements with same atomic number and different atomic mass number are called? Isobars Isotopes Isomers Isotones None 8. Which of the following radionuclides has the highest kinetic energy of the positron? N-13. F-18. Rb-82. C-11. None 9. Which of the following is the half-life? Time taken for the number of radioactive nuclei to increase by a factor of two. Time taken for the number of radioactive nuclei to decrease by a factor of two. Decay constant multiplied by the natural logarithm of two. Reciprocal of the decay constant. None 10. Basic algorithms for reconstruction of tomographic images from projection figures include two analytic techniques known as: Filtering and volume rendering techniques Inverse Fourier transform and filtering techniques Filtered backprojection and iterative techniques Filtered backprojection and volume rendering techniques None 1 out of 10 Time's upTime is Up! By Nasser AlMutairi|2021-03-31T11:37:09+03:00March 31st, 2021| شارك هذه الصفحة FacebookXLinkedInWhatsAppPinterestEmail About the Author: Nasser AlMutairi Senior Nuclear Medicine Specialist at Hafar Al-Batin Central Hospital, Founder of NuclearMed Website. Leave A Comment Cancel replyComment Δ
Leave A Comment