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Ray Optics and Optical Instruments — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsRay Optics and Optical Instruments1 Mark
MCQ
An ellipsometer is an instrument for.
  • A
    Measuring stellar distance.
  • B
    Measuring the path of celestial bodies.
  • C
    Ending curvature of elliptical surfaces.
  • ✓
    Studying thin films on a solid surface.
✓

Answer

Correct option: D.
Studying thin films on a solid surface.

An ellipsometer is a device used for studying thin films on a solid surface.
Ellipsometry is an optical technique for investigating the di electric properties of thin films.

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