Physics · Electronics
बारकोड रीडर में मुख्य रूप से किस सेमीकंडक्टर डिवाइस (अर्धचालक उपकरण) का उपयोग किया जाता है?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
Share:
- 1प्रकाश उत्सर्जक डायोड (LED)
- 2लेजर डायोड (Laser diode)✓
- 3प्रकाश निर्भर प्रतिरोधक (LDR)
- 4जंक्शन डायोड (Junction diode)
सही उत्तर देखें
लेजर डायोड (Laser diode)
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