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Physics Questions and Answers

TRB Model Questions
 
9. Which one of the following is correct when a body moving a circular path with constant speed?
 
  • A. The body has variable acceleration
  • B. The body has constant velocity and variable speed
  • C. The body has constant retardation
  • D. The body has constant acceleration
Answer: A.
The body has variable acceleration
 
10. Which one of the following is not an amorphous substance?
 
  • A. Copper
  • B. Polymer
  • C. Glass
  • D. Rubber
Answer: A.
Copper
 
 
11. Which one of the following is deviated by an electric field?
 
  • A. X rays
  • B. Alpha rays
  • C. Neutrons
  • D. Beta rays
Answer: B.
Alpha rays
 
12. Which one among the following lasers is used in cancer treatment?
 
  • A. Semiconductor laser
  • B. CO2 laser
  • C. Ruby laser
  • D. He Ne laser
Answer: B.
CO2 laser