2025 Science & Technology - Physics

What is the difference between a CFL and an LED lamp?

  • To produce light, a CFL uses mercury vapour and phosphor while an LED lamp uses semi-conductor material.
  • The average life span of a CFL is much longer than that of an LED lamp
  • A CFL is less energy-efficient as compared to an LED lamp.
  • 12 and

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    2025 UPSC Science & Technology PYQ | UPSC Insights | UPSC Insights