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9. Ray optics abd optical instruments — Physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 SciencePhysics9. Ray optics abd optical instruments1 Mark
MCQ
In a compound microscope cross-wires are fixed at the point
  • ✓
    Where the image is formed by the objective
  • B
    Where the image is formed by the eye-piece
  • C
    Where the focal point of the objective lies
  • D
    Where the focal point of the eye-piece lies
✓

Answer

Correct option: A.
Where the image is formed by the objective
a
( a)Cross wire arrangement is used to make measurements.

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