Question

Which from following techniques is used to determine structure of surface of material?

विकल्प

• X ray diffraction

• Scanning electron microscopу

• Transmission electron microscopy

• UV-visible spectroscopy

Answer 1

Scanning electron microscopу

Explanation:

SEM directly images surface morphology/topography and is the standard technique for studying a material’s surface. For comparison: X‑ray diffraction identifies bulk crystalline phases and unit‑cell information, TEM images internal/ultrathin sample structure (not bulk surface), and UV–Vis measures optical absorption; none are primarily surface‑imaging techniques.