7. Which of the following is not true about the light microscopy?
(A) A shorter wavelength of light can give a greater resolution.
(B) An objective with a larger numerical aperture (NA) will have a smaller working
distance.
(C) An objective with a smaller numerical aperture (NA) will have a greater
resolution power.
(D) Parfocal microscopes remain in focus when objectives are changed.
(E) Immersion oil can increase the refractive index between the specimen and the
objective lens.
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