Attempt this previous-year question. The correct option stays hidden until you choose.
Consider the following statements:
Statement I: Some rare earth elements are used in the manufacture of flat television, screens and computer monitors,
Statement II: Some rare earth elements have phosphorescent properties. Which one of the following is correct in respect of the above statements?
Pick an option to check yourself.
• Correct Answer: A
• Europium, terbium and yttrium are used in TV screens due to their phosphorescent properties.
• Phosphorescence directly explains their application as light-emitting phosphors in displays.
Attempt Prelims MCQs or open Mains questions by paper — then continue the same bank inside the app with visual decks.
GyanGram