Physics · Illumination
What is the typical luminous efficiency of an LED lamp?
- 180-110 lumens/watt✓
- 2500-600 lumens/watt
- 3800-1000 lumens/watt
- 410-20 lumens/watt
Correct answer
80-110 lumens/watt
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!
Preparing for Physics?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Want more practice questions on Illumination?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Physics · Illumination