29/03/2020 Nuclear Physics(Senior Class Physics Study by Topics) 29/03/2020 0Comments by Gate Academy Welcome to your Nuclear Physics(Senior Class Physics Study by Topics) NAME EMAIL PHONE NUMBER 1. A neutron is captured by a nucleus. Which of the following gives the changes in the atomic (proton) number and mass (nucleon) number of the nucleus? Proton number increases by 1 and nucleon number unchanged Proton number increases by 1 and nucleon number increases by 1 Proton number unchanged and nucleon number increases by 1 Proton number unchanged and nucleon number unchanged 2. The graph below illustrates the variation with nucleon number (mass number) N of the binding energy per nucleon E of nuclei. Which of the labelled nuclei is the most stable? D A C B 3. The ionization power of the three radiations from radioactive substances arranged in ascending order is Beta, alpha, gamma Alpha, gamma, beta Gamma, beta alpha Alpha, beta, gamma 4. "The amount of energy released when a nucleus is assembled from its component nucleons" What is being defined above? mass energy binding effect nucleon 5. What is the difference between the mass of the nucleus and the sum of the masses of its individual nucleons None of the above Binding energy Binding energy per nucleon Mass defect 6. The nucleons in a nucleus are attracted by Gravitational force Electrostatic force Magnetic force Nuclear force 7. Nuclear fusion produces the most energy when two are fused to make helium. carbon atoms Nitrogen Boron atoms hydrogen atoms 8. Gamma rays are harmless to the body. True False 9. The ionisation power is maximum for Neutrons γ – rays α – particles β − particles 10. Isotopes provide evidence for the existence of Nuclei Electrons Protons Neutrons 11. What is the energy required to separate nucleus into its component nucleons Binding energy per nucleon Binding energy Mass defect None of the above 12. "Device that allows the nuclear reactions to occur in a place that is sealed from the rest of the environment" Write down what is being defined heat exchanger container mass storage unit 13. Define "radioactive decay" The process by which an atom loses its electrons to the surroundings The process by which an atom loses its mass over time The process by which atomic nuclei decay 14. "Law stating that, for a given area of receiver, the intensity of the received radiation is inversely proportional to the square of the distancefrom the point source to the receiver" Which law is this? Hooke's law Wien's displacement law Boltzmann's law Inverse square law 15. The unified mass unit is defined as A sixth of the mass of one neutral atom of C12. The mass of one neutral atom of C12 A twelfth of the mass of one neutral atom of C12. The mass of the nucleus of C12. 16. Beta decay can increase the atomic number of a nucleus by a number of 1. False True 17. "Device which converts a portion of the sun's radiated energy directly into a potential difference" What is defined? Photovoltaic cell Active solar heater Albedo Solar panel 18. The half life period of a certain radioactive element with disintegration constant 0.0693 per day is 10 days 14 days 1.4 days 140 days 19. Which process produces energy by the splitting of large atoms? Proliferation Fissile material Fission Fusion 20. If you get a question about greenhouse gases or global warming on the exam. never forget to mention the enhanced greenhouse effect. What is it? An increase in the greenhouse effect caused by human activities An increase in the greenhouse effect caused by cars An increase in the greenouse effect caused by carbon dioxide 21. Fusion technology is used in the thermonuclear bomb. True False 22. In some Centers, the Nuclear Medicine department may also use implanted Capsules of isotopes to treat Cancers. Known as Angiopathy Capslelotherapy Brachytherapy Anglotherapy 23. "A spectrum where all possible frequencies of light are present" What is being defined? Absorption spectrum Emission spectrum Continuous spectrum 24. The strong force keeps the atom together, the weak force is responsible for decay. False True 25. "The energy liberated per unit mass of fuel consumed" What is being defined? Albedo Work function Energy density Critical mass 1 out of 25 Time is Up! Time's up
