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Physics

General Knowledge
46. What is the name of the nuclear reactor at trombay?
 
  • A. bhaba
  • B. venus
  • C. aryabhatta
  • D. apsara
 
47. Split ring commutators are used in which of the following
 
  • A. AC motor
  • B. AC Dynamo
  • C. DC Dynamo
  • D. All of the above
 
 
48. Which of the following can be made into a permanent magnet?
 
  • A. lead
  • B. soft iron
  • C. hard steel
  • D. none of these
 
49. Land and sea breezes are due to
 
  • A. conduction of heat
  • B. radiation of heat
  • C. convection of heat
  • D. conversion of heat
 
50. The period of revolution of a satellite close to
 
  • A. 200 sec
  • B. 400 sec
  • C. 500 sec
  • D. 5000 sec