Question

which of these factors is improved by adding immersion oil when using the 100x objective? a) transparency b) resolution c) magnification d) contrast

Explanation:

Immersion oil is used to increase the numerical aperture of the objective lens in microscopy. This improvement in numerical aperture leads to an increase in resolution by allowing more light to enter the objective lens and reducing light refraction at the air - glass interface. Contrast is affected by staining and other techniques, magnification is determined by the lens design and tube length, and transparency is a property of the specimen itself and not directly improved by immersion oil.

Answer:

b) Resolution