Civil Services Examination · প্রশ্ন 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?
উত্তর দেখান ও ব্যাখ্যা
উত্তর: (A) Both Statement I and Statement II are correct and Statement II explains Statement I
ব্যাখ্যা
Their phosphorescent properties are exactly why certain rare earth elements are used in display screens.