Physics · Electronics
Which type of light source works by running electricity through gas inside spiral glass tubes to excite the gas, creating ultraviolet light that interacts with an internal phosphor coating to emit white light, while remaining cooler than incandescent bulbs?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
Share:
- 1Sodium vapour lamps
- 2Halogen bulbs
- 3Compact Fluorescent Lamps (CFL)✓
- 4Standard Fluorescent tubes
Correct answer
Compact Fluorescent Lamps (CFL)
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
👥
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Online Test Series
Start Free Mock Test →Preparing for Physics?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Chapter Practice
Practice Electronics MCQs →Want more practice questions on Electronics?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Physics · Electronics