UPSC Exam  >  UPSC Questions  >  Consider the following statements. X-ray fluo... Start Learning for Free
Consider the following statements.
  1. X-ray fluorescence is commonly used to study the composition of materials in a non-destructive manner.
  2. When the sun gives out solar flares, a large amount of X-ray radiation falls on the moon, triggering X-ray fluorescence.
Which of the above statements is/are correct?
  • a)
    1 only 
  • b)
    2 only 
  • c)
    Both 1 and 2 
  • d)
    Neither 1 nor 2
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Consider the following statements. X-ray fluorescence is commonly used...
Statement 1: X-ray fluorescence is commonly used to study the composition of materials in a non-destructive manner.

Statement 2: When the sun gives out solar flares, a large amount of X-ray radiation falls on the moon, triggering X-ray fluorescence.

Explanation:

Statement 1: X-ray fluorescence (XRF) is a widely used analytical technique to determine the elemental composition of materials. It works based on the principle that when a material is exposed to high-energy X-rays, the atoms in the material absorb the energy and then re-emit it as characteristic X-rays. These emitted X-rays can be detected and analyzed to identify the elements present in the material. XRF is a non-destructive technique as it does not require the sample to be altered or destroyed during the analysis. Therefore, statement 1 is correct.

Statement 2: Solar flares are sudden eruptions of energy on the Sun's surface that release a large amount of electromagnetic radiation, including X-rays. When solar flares occur, some of this X-ray radiation reaches the Moon. When X-rays from the Sun interact with the lunar surface, they can cause the atoms in the Moon's regolith (the layer of loose material covering solid rock) to fluoresce. This phenomenon is known as X-ray fluorescence. The fluorescence occurs because the high-energy X-rays cause the atoms in the regolith to become excited, and when these excited atoms return to their ground state, they emit X-rays of specific wavelengths. By studying the X-rays emitted by the lunar regolith, scientists can gain insights into the composition of the Moon's surface. Therefore, statement 2 is also correct.

Conclusion: Both statement 1 and statement 2 are correct. X-ray fluorescence is commonly used as a non-destructive technique to study the composition of materials, and solar flares can trigger X-ray fluorescence on the Moon's surface when a large amount of X-ray radiation falls on it.
Free Test
Community Answer
Consider the following statements. X-ray fluorescence is commonly used...
  • Scientists from Indian Space Research Organisation (ISRO) have mapped out the global distribution of sodium on the Moon’s surface. They used the CLASS instrument (Chandrayaan-2 large area soft X-ray spectrometer) carried by the second Indian Moon mission, Chandrayaan-2.
  • This is the first effort to provide a global-scale measurement of sodium on the lunar surface using X-ray fluorescent spectra.
  • X-ray fluorescence is commonly used to study the composition of materials in a non-destructive manner. When the sun gives out solar flares, a large amount of X-ray radiation falls on the moon, triggering X-ray fluorescence.
Explore Courses for UPSC exam

Top Courses for UPSC

Consider the following statements. X-ray fluorescence is commonly used to study the composition of materials in a non-destructive manner. When the sun gives out solar flares, a large amount of X-ray radiation falls on the moon, triggering X-ray fluorescence.Which of the above statements is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'C'. Can you explain this answer?
Question Description
Consider the following statements. X-ray fluorescence is commonly used to study the composition of materials in a non-destructive manner. When the sun gives out solar flares, a large amount of X-ray radiation falls on the moon, triggering X-ray fluorescence.Which of the above statements is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'C'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following statements. X-ray fluorescence is commonly used to study the composition of materials in a non-destructive manner. When the sun gives out solar flares, a large amount of X-ray radiation falls on the moon, triggering X-ray fluorescence.Which of the above statements is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements. X-ray fluorescence is commonly used to study the composition of materials in a non-destructive manner. When the sun gives out solar flares, a large amount of X-ray radiation falls on the moon, triggering X-ray fluorescence.Which of the above statements is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'C'. Can you explain this answer?.
Solutions for Consider the following statements. X-ray fluorescence is commonly used to study the composition of materials in a non-destructive manner. When the sun gives out solar flares, a large amount of X-ray radiation falls on the moon, triggering X-ray fluorescence.Which of the above statements is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for UPSC. Download more important topics, notes, lectures and mock test series for UPSC Exam by signing up for free.
Here you can find the meaning of Consider the following statements. X-ray fluorescence is commonly used to study the composition of materials in a non-destructive manner. When the sun gives out solar flares, a large amount of X-ray radiation falls on the moon, triggering X-ray fluorescence.Which of the above statements is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Consider the following statements. X-ray fluorescence is commonly used to study the composition of materials in a non-destructive manner. When the sun gives out solar flares, a large amount of X-ray radiation falls on the moon, triggering X-ray fluorescence.Which of the above statements is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'C'. Can you explain this answer?, a detailed solution for Consider the following statements. X-ray fluorescence is commonly used to study the composition of materials in a non-destructive manner. When the sun gives out solar flares, a large amount of X-ray radiation falls on the moon, triggering X-ray fluorescence.Which of the above statements is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of Consider the following statements. X-ray fluorescence is commonly used to study the composition of materials in a non-destructive manner. When the sun gives out solar flares, a large amount of X-ray radiation falls on the moon, triggering X-ray fluorescence.Which of the above statements is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Consider the following statements. X-ray fluorescence is commonly used to study the composition of materials in a non-destructive manner. When the sun gives out solar flares, a large amount of X-ray radiation falls on the moon, triggering X-ray fluorescence.Which of the above statements is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'C'. Can you explain this answer? tests, examples and also practice UPSC tests.
Explore Courses for UPSC exam

Top Courses for UPSC

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev