Question 81
Set 1
Contents
QQuestion
OOptions
✓Correct Answer
DDalvoy Solutions
Statement I: Correct. Rare earth elements are indeed used in manufacturing flat television screens and computer monitors for various components including phosphors, magnets, and electronic circuits.
Statement II: Correct and explains Statement I. Some rare earth elements, particularly europium and terbium, have phosphorescent properties that make them essential for creating the phosphors used in display screens. These phosphors convert electrical energy into visible light in specific colors, enabling the display functionality.
The phosphorescent properties of rare earth elements directly explain their application in display technology, making them crucial for modern electronic displays.
SUPSC Prelims Strategy and Tips
For rare earth element questions, connect their unique properties (magnetic, phosphorescent, catalytic) to their specific technological applications in modern electronics and clean energy systems.