UPSC Combined Geo-Scientist, Mains · 2021 · Mains Paper II
Q8(a). Raman spectrum: Rayleigh, Stokes and anti-Stokes lines
Question
Sketch qualitatively the Raman spectrum showing Rayleigh, Stokes and anti-Stokes lines. Why are Stokes lines more intense than the anti-Stokes lines?
Model answer
The free solution for 2021 answers questions 1, 2, 3, 4, 6, 7, 10, 12, 14 and 15, the ones picked in its time plan. Question 8 is answered in full in the Geo-Scientist Chemistry Paper II, 2021 to 2025 book, with every part of every paper.
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UPSC Combined Geo-Scientist (Main) Chemistry Paper II: Model Answers 2021 to 2025
- All fifteen questions of each paper, with the question printed above its answer
- Numericals worked from formula to result with units; graphs with labelled axes
- Topic-wise weightage and a topic-wise index
CoversRaman spectrumStokes linesanti-Stokes linesRayleigh scatteringBoltzmann distribution
All parts of Question 8
- 8(a) Raman spectrum: Rayleigh, Stokes and anti-Stokes lines7 marks
- 8(b) Rule of mutual exclusion and its converse3 marks