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. Which of the following sentences correctly describes a positron? A particle having a mass equal to the proton but opposite charge A particle having a mass equal to the electron 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 None 2. Basic algorithms for reconstruction of tomographic images from projection figures include two analytic techniques known as: Filtered backprojection and volume rendering techniques Inverse Fourier transform and filtering techniques Filtered backprojection and iterative techniques Filtering and volume rendering techniques None 3. 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 shielding material The nucleus decays without collision with another particle or atom The nucleus decays after collision with another particle or atom The nucleus decays without collision with shielding material None 4. An alpha particle is identical to the nucleus of a helium atom. Alpha particles: Are not charged Are smaller than beta particles Are used for radionuclide therapy Travel unlimited distances None 5. Technetium-99m and Technetium-99 are: Isotopes Isotones Isobars Isomers None 6. In isomeric transition decay, the extra energy in the nucleus is released by the emission of: Gamma photons Electrons X-rays Neutrons None 7. If the sample volume of a given activity is increased, the counting efficiency of the well counter will: Increase Approach 0 Decrease Not change None 8. An atom with an unstable nucleus is called a: Radiochemical Radionuclide Radio wave Radiopharmaceutical None 9. The minimum amount of energy needed to overcome the forces holding the atom together is called: Binding energy Kinetic energy Thermal energy Holding energy None 10. The ratio of net counts in the photopeak to net counts in the entire spectrum is called: Photopeak efficiency Energy resolution Photopeak window Energy constant None 1 out of 10 Time's upTime is Up! بواسطة ناصر المطيري|2021-03-31T11:37:09+03:00مارس 31st, 2021|لا توجد تعليقات شارك هذه الصفحة, واترك رأيك حول الموضوع باستخدام وسيلة التواصل التي تناسبك FacebookXLinkedInWhatsAppPinterestEmail عن: ناصر المطيري كبير أخصائيي الطب النووي في مستشفى حفر الباطن المركزي و مؤسس موقع نيوكليرمد. اضف تعليقا إلغاء الردتعليق Δ
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