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?
Select an option to reveal the answer and explanation.
A hard Science & Technology multiple-choice question from UPSC Prelims 2025. Attempt it above, then check the correct answer and detailed explanation below.
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Correct answer: A. Both Statement I and Statement II are correct and Statement II explains Statement I
Both statements are correct and Statement II explains Statement I — rare earth elements are used in flat screens and monitors precisely because some of them have phosphorescent/luminescent properties that produce the display colours.
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