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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