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UPSC Prelims 2025 Paper-I 📅 25 May, 2025

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?

A
Both Statement I and Statement II are correct and Statement II explains Statement I
B
Both Statement I and Statement II are correct but Statement II does not explain Statement I
C
Statement I is correct but Statement II is not correct
D
Statement I is not correct but Statement II is correct
Result Summary
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UPSC Prelims
2025 • 25 May, 2025 • Paper-I
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?
Correct Answer
Both Statement I and Statement II are correct and Statement II explains Statement I
Statement II explains Statement I. Rare earth elements like Europium and Yttrium have phosphorescent properties, meaning they emit light when stimulated, making......
Ref/Book : UPSC Prelims 2025
Ref. Subject Science & Tech
Chapter -
Ref. Topic Physics and Chemistry
Pg. No -
💡 Analysis & Explanation
Introduction ▼
Statement II explains Statement I. Rare earth elements like Europium and Yttrium have phosphorescent properties, meaning they emit light when stimulated, making them absolutely essential for creating the red and other bright colors in flat television screens and computer monitors.
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