Question

immersion oil is used with which objective for final viewing of the simple - stained smear? 10x 40x 100x 4x

Explanation:

Immersion oil is used to prevent light refraction and increase resolution. It is typically used with the highest - power objective lens. Among the given options, the 100x objective is the highest - power objective. When using the 100x objective, immersion oil is placed between the slide and the objective lens. This helps to achieve a higher magnification and better resolution for detailed viewing of the sample, such as a simple - stained smear.

Answer:

100x