Q. Which of the following is a cold cathode lamp? (Solved)
1. Sodium vapour lamp
2. High pressure mercury vapour lamp
3. Low pressure mercury vapour lamp
4. Neon lamp
5. None of the above
- d. Neon lamp
1. Sodium vapour lamp
2. High pressure mercury vapour lamp
3. Low pressure mercury vapour lamp
4. Neon lamp
5. None of the above