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UPSC PYQPrelims 2025

Civil Services Examination · Question 61

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?

  1. Both Statement I and Statement II are correct and Statement II explains Statement I
  2. Both Statement I and Statement II are correct but Statement II does not explain Statement I
  3. Statement I is correct but Statement II is not correct
  4. Statement I is not correct but Statement II is correct
Show answer & explanation

Answer: (A) Both Statement I and Statement II are correct and Statement II explains Statement I

Explanation

Their phosphorescent properties are exactly why certain rare earth elements are used in display screens.