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. "Half-life" can simply be defined as the time taken for half the number of nucleons in a sample to decay True False 2. In a fission chain reaction, Energy from one fission reaction causes further fission reactions neutrons from one fission reaction cause further fission reactions. Gamma radiation produced in one fission reaction causes further fission reactions nuclei produced in one fission reaction cause further fission reactions. 3. Which process produces energy by the splitting of large atoms? Proliferation Fusion Fission Fissile material 4. "Device which converts a portion of the sun's radiated energy directly into a potential difference" What is defined? Photovoltaic cell Albedo Solar panel Active solar heater 5. Which one of the following correctly identifies the atomic (proton) number and mass (nucleon) number of a nucleus that has neutrons nand protons p? Atomic number Mass number A. p n B. p n + p C. n p D. n + p p B D A C 6. What is the energy required to separate nucleus into its component nucleons Mass defect Binding energy None of the above Binding energy per nucleon 7. Gamma rays are harmless to the body. False True 8. The nucleons in a nucleus are attracted by Electrostatic force Magnetic force Gravitational force Nuclear force 9. 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 10. What is the difference between the mass of the nucleus and the sum of the masses of its individual nucleons Mass defect None of the above Binding energy per nucleon Binding energy 11. What is the difference in mass between before and after a nuclear interaction None of the above Binding energy Mass defect Binding energy per nucleon 12. Fission technology is used in the thermonuclear bomb. False True 13. The unified mass unit is defined as the rest mass of An atom of carbon-12 divided by 12 A proton An atom of carbon-12 An atom of hydrogen-1 14. Wien's displacement law relates the wavelength at which the intensity of the radiation is at maximum, to the temperature of a [...] Black body Red body Blue body 15. "The ratio of power radiated per unit area by an object, to the power radiated per unit area by a black body at the same temperature" What is being defined? E.m.f Emissivity Feedback Coefficient of volume expansion 16. The nucleons in a nucleus are attracted by Gravitational force Magnetic force Electrostatic force Nuclear force 17. The phenomenon of radioactivity was discovered by Madam curie Pierre curie Henry Becquerrel Rutherford 18. The strong force keeps the atom together, the weak force is responsible for decay. True False 19. In the nuclear reaction, X-stands for Electron Neutron Proton Deutron 20. The end result of the Nuclear Medicine Imaging process is Output Data Scan Data Set X-ray 21. Anaemia can be diagnosed by (4) (3) (2) (1) 22. "A spectrum where all possible frequencies of light are present" What is being defined? Emission spectrum Absorption spectrum Continuous spectrum 23. Fission technology is used in the thermonuclear bomb. True False 24. Medical Specialty involving the application of radioactive substances in the diagnosis and treatment of Disease is Pathogen Test Radiation Medicine Nuclear Medicine Mechanical Sciences 25. "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? Wien's displacement law Hooke's law Inverse square law Boltzmann's law 1 out of 25 Time is Up! Time's up