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Physics Gk Questions and Answers

TRB Model Questions
 
9. Mechanical energy is converted into electrical energy in a
 
  • A. Motor
  • B. Microphone
  • C. Loud speaker
  • D. Generator
Answer: D.
Generator
 
10. Slip rings are placed in a
 
  • A. AC generator
  • B. DC generator
  • C. Transformer
  • D. Galvanometer
Answer: B.
DC generator
 
 
11. X rays can pass through
 
  • A. Lead
  • B. Gold
  • C. Calcium
  • D. Carbon
Answer: C.
Calcium
 
12. The catalyst in the Carbon Nitrogen cycle is
 
  • A. Carbon
  • B. Proton
  • C. Graphite
  • D. Nitrogen
Answer: A.
Carbon