Question

how to use immersion oil in microscope and where to use immersion oil in microscope​

Answer 1

Attempting to use immersion oil with a "dry" objective will only foul the lens. To use an oil immersion lens, first focus on the area of specimen to be observed with the high dry (400x) lens. Place a drop of immersion oil on the cover slip over that area, and very carefully swing the oil immersion lens into place..

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Answer 2

Answer:

once you use the 100x objective lens, the light refraction when using a dry lens is noticeable. ... By placing a substance such as immersion oil with a refractive index equal to that of the glass slide in the space filled with air, more light is directed through the objective and a clearer image is observed.

Explanation:

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