Laser Technology

PART-A Unit-I: General Science

Previous Year Questions (PYQ) for this topic

Every TNPSC question asked from this topic, compiled as a PDF. · PDF 1.2 MB

Laser Technology

Laser Technology – Medical Application

  • Lasers are used in medical procedures such as surgery.
  • A laser beam is used for carrying out surgery because it is sharply focussed.

Laser Technology – Hair Transplantation

  • The laser used for hair transplantation is CO₂ Laser.
  • PYQ answer: CO₂ Laser.

He-Ne Laser

  • The helium-neon laser is represented as He : Ne Laser.
  • The ratio of Helium to Neon in the He-Ne laser is 5 : 1.
  • PYQ answer: 5 : 1.

Laser Technology – Important PYQ Points

  • Laser used for hair transplantation → CO₂ Laser.
  • Reason for using a laser beam in surgery → It is sharply focussed.
  • He : Ne ratio in He-Ne Laser → 5 : 1.

Quick Revision

  • Hair transplantation → CO₂ Laser
  • Surgery → Sharply focussed laser beam
  • He : Ne Laser ratio → 5 : 1

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