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physics 14 nuclear physics
Pg.No.
1
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Page 1
Q.1. Which are the three fundamental particles of atom?
Q.2. Which particles are present in nucleus of atom?
Q.3. Which particle revolve around the nucleus of atom?
Q.4. Number of protons in atom is equal to the number of?
Q.5. The charge of electron is equal and opposite to?
Q.6. Who discovered proton?
Q.7. What is the mass of proton?
Q.8. What is the charge of proton?
Q.9. Who discovered neutron?
Q.10. What is the mass of neutron?
Q.11. What is the charge of neutron?
Q.12. Who discovered electron?
Q.13. What is the mass of electron?
Q.14. What is the charge of electron?
Q.15. What is antiparticle of electron?
Q.16. Who discovered positron?
Q.17. What is the mass of positron?
Q.18. What is the charge of positron?
Q.19. Who discovered nutrino?
Q.20. What is the mass of nutrino?
Q.21. What is the charge of nutrino?
Q.22. Who discovered pi-meson?
Q.23. What is the mass of nutrino?
Q.24. What is the charge of nutrino?
Q.25. What is the mass of photon?
Q.26. What is the charge of photon?
Q.27. Cathode rays are beam of?
Q.28. Negatively charged electrode is known as?
Q.29. What is velocity of cathode rays?
Q.30. Are cathode rays deflected by electric and magnetic fields?
Q.31. Can cathode rays ionise gases?
Q.32. Do cathode rays heat the material on which they fall?
Q.33. Is photographic plate affected by cathode rays?
Q.34. X-rays are produced when cathode rays strike?
Q.35. Is nature of cathode rays dependent on nature of cathode and the gas in the discharge tube?
Q.36. Who discovered Anode Rays?
Q.37. Anode rays also known as?
Q.38. Anode rays consists of?
Q.39. Are anode rays deflected by electric and magnetic field?
Q.40. Do anode rays ionise gases?
Q.41. Radioactive waves are produced when?
Q.42. Radioactivity was discovered by?
Q.43. Nucleus of which atoms are unstable?
Q.44. Which particles are emitted by unstable atoms?
Q.45. Elements which emit alpha, beta and gamma particles are known as?
Q.46. Phenomena of emmission of alpha, beta and gamma particles by radioactive elements is known as?
Q.47. Gamma rays are emitted after the emission of?
Q.48. Who discovered Radium?
Q.49. The rays emitted by radioactivity were first recognised by?
Q.50. The end product of all natural radioactive elements after emission of radioactive rays is?
Q.51. What is the origin of alpha rays?
Q.52. What is the charge of alpha rays?
Q.53. What is composition of alpha rays?
Q.54. What is the mass of alpha particle?
Q.55. What is the charge of alpha particle?
Q.56. Do alpha particle affect photographic plate?
Q.57. What is the effect of electric and magnetic field on alpha particles?
Q.58. What is the velocity of alpha rays?
Q.59. What is the origin of beta rays?
Q.60. What is the charge of beta rays?
Q.61. What is composition of beta rays?
Q.62. What is the mass of beta particle?
Q.63. What is the charge of beta particle?
Q.64. Do beta particle affect photographic plate?
Q.65. What is the effect of electric and magnetic field on beta particles?
Q.66. What is the velocity of beta rays?
Q.67. What is the origin of gamma rays?
Q.68. What is the charge of gamma rays?
Q.69. What is composition of gamma rays?
Q.70. What is the mass of gamma particle?
Q.71. What is the charge of gamma particle?
Q.72. Do gamma particle affect photographic plate?
Q.73. What is the effect of electric and magnetic field on gamma particles?
Q.74. What is the velocity of gamma rays?
Q.75. With the emission of alpha particle, atomic number of atom is decreased by?
Q.76. With the emission of alpha particle, mass number of atom is decreased by?
Q.77. With the emission of beta particle, atomic number of atom is increased by?
Q.78. With the emission of beta particle, mass number of atom is changed by?
Q.79. The effect on the mass number and atomic number with the emission of alpha, beta and gamma rays is decided by?
Q.80. Radioactivity is detected by?
Q.81. The time in which half nuclei of the element is decayed is known as?
Q.82. Cloud chamber is used to detect?
Q.83. Who invented Cloud Chamber?
Q.84. What is used to measure the age of fossils and plants?
Q.85. In Carbon dating the age of fossil is decided by measuring the ratio of?
Q.86. The nuclear reaction in which a heavy nucleus splits into two nuclei of nearly equal mass is known as?
Q.87. The energy released in nuclear fission is known as?
Q.88. Nuclear fission was first demonstrated by?
Q.89. When Uranium-235 (U
235
) is excited by neutron, it splits into?
Q.90. How many neutrons are released in fission of one Uranium nucleus?
Q.91. What are the types of fission chain reaction?
Q.92. Atom bomb is based on?
Q.93.
92
U
235
+
0
n
1
--->
56
Ba
141
+
36
Kr
92
+ 3
0
n
1
+ energy, given equation is an example of ? [U=Uranium,n=neutron,Ba=Barium,Kr=Krypton]
Q.94. How many neutrons on the average are released with huge energy by the fission of each uranium nucleus ?
Q.95. A series of nuclear fissions,each initiated by a neutron produced in a preceding fission is called as?
Q.96. Which are the two types of chain reactions?
Q.97. A slow proceeding fission chain reaction in which only one of the neutrons produced in each fission is able to cause further fission is known as?
Q.98. Which nuclear chain reaction has constant rate?
Q.99. An arrangment in which controlled nuclear fission reaction taking place is called as?
Q.100. Where the first nuclear reactor was established under the supervision of Professor Fermi?
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