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. Nuclide X has a half-life of 1 day and nuclide Y has a half-life of 5 days. In a particular sample, the activities of X and Y are found to be equal. When the activity is tested again after 10 days, the activity will be Mostly due to nuclide X Entirely due to nuclide X Due equally to nuclides X and Y Mostly due to nuclide Y 2. The reading of a detector of radioactive radiation falls from an average rate of 800 per minute to an average of 1000 per minute in a period of 24 minutes. The half-life is 8 minutes 3 minutes 12 minutes 6 minutes 3. Which of the following is used as a neutron absorber in the nuclear reactor Deuterium Some compound of uranium Cadium Water 4. Beta decay can increase the atomic number of a nucleus by a number of 1 False True 5. he graph below shows the variation with mass (nucleon) number of the average binding energy per nucleon. Which direction indicates a fission reaction with a release of energy IV I II III 6. Fusion technology is used in the thermonuclear bomb. False True 7. In β – decay mass number decreases by one Atomic number decreases by one Proton number remains the same Neutron number decreases by one 8. A gamma ray is also known as An electron A photon A positron A helium nucleus 9. "A spectrum where all possible frequencies of light are present" What is being defined? Continuous spectrum Absorption spectrum Emission spectrum 10. Fission technology is used in the thermonuclear bomb. False True 11. Which of the following statements best describes the random nature of radioactive decay? The time at which a particular nucleus will decay cannot be predicted The decay of a nucleus is unaffected by environmental conditions The decaying nucleus emits either an alpha-particle, or a beta-particle or a gamma-ray photon The type of radiation emitted by the decaying nucleus cannot be predicted 12. Nuclear fusion produces the most energy when two are fused to make helium. Boron atoms Nitrogen hydrogen atoms carbon atoms 13. In some Centers, the Nuclear Medicine department may also use implanted Capsules of isotopes to treat Cancers. Known as Brachytherapy Angiopathy Anglotherapy Capslelotherapy 14. The Radionuclide introduced into the body is chemically bond to a complex that acts characteristically within the body; it is commonly known as Tracker Tracer Scanner Detector 15. Wien's displacement law relates the wavelength at which the intensity of the radiation is at maximum, to the temperature of a [...] Blue body Red body Black body 16. Which process produces energy by the splitting of large atoms? Proliferation Fission Fusion Fissile material 17. The explosion of atom bomb is based on the principle of Fusion reaction Uncontrolled fission reaction Thermonuclear reaction Controlled fission reaction 18. "The energy liberated per unit mass of fuel consumed" What is being defined? Critical mass Energy density Albedo Work function 19. The sun produces its light energy from the fission of helium atoms. True False 20. The sun produces its light energy from the fission of helium atoms. False True 21. The phenomenon of radioactivity was discovered by Madam curie Rutherford Henry Becquerrel Pierre curie 22. Black-body radiation can simply be defined as "the radiation from a perfect absorber" False True 23. Which process produces energy by the splitting of large atoms? Fusion Fissile material Proliferation Fission 24. The nuclear radius of nucleus is 2.6 x 10ˆ-15 m 1.3 x 10ˆ-13 m 1.3 x 10ˆ-15 m 2.6 x 10ˆ-13 m 25. The ionization power of the three radiations from radioactive substances arranged in ascending order is Gamma, beta alpha Beta, alpha, gamma Alpha, gamma, beta Alpha, beta, gamma 1 out of 25 Time is Up! Time's up
