Computer Science · Input and Output Devices
Which of the following statements regarding bar-codes is false?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
Share:
- 1Bar-codes represent data using combinations of vertical lines of varying widths.
- 2Bar-codes are used on goods, postal packages, books, etc., for unique identification.
- 3A bar-code reader uses laser-beam scanning technology.
- 4Bar-codes are printed using special ink containing iron oxide.✓
Correct answer
Bar-codes are printed using special ink containing iron oxide.
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 Computer Science?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Chapter Practice
Practice Input and Output Devices MCQs →Want more practice questions on Input and Output Devices?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Computer Science · Input and Output Devices