GATE 2021 BM – Question 47
Biomaterials and Tissue Engineering · Biomaterial Characterization · 2 marks · Multiple choice
Match techniques P SEM,Q FTIR,R XPS,S AFM with properties K elemental composition,L roughness,M functional groups,N topography.
- P–L,Q–N,R–K,S–M
- P–N,Q–M,R–K,S–L
- P–N,Q–K,R–L,S–M
- P–M,Q–K,R–N,S–L
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Correct answer: (B) P–N,Q–M,R–K,S–L
Explanation
SEM resolves surface morphology/topography, P–N. FTIR identifies vibrational signatures of functional groups, Q–M. XPS determines near-surface elemental/chemical composition, R–K. AFM measures nanoscale surface height and roughness, S–L. This matches B.
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