R

Ram Sharma • 193.88K Points
Coach Physics

Q. What are three types of lasers?

  • (A) Gas, metal vapour, rock
  • (B) Diode, inverted, pointer
  • (C) Pointer, diode, CD
  • (D) Gas, solid state, diode
  • Correct Answer - Option(D)
  • Views: 704
  • Filed under category Physics

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