Question

fill in the blank question
the total power of magnification is calculated by the product of the separate powers of the □ lens and the □ lens
need help? review these concept resources:

Explanation:

In the context of magnification (likely in optics, a subfield of Physics, which is part of Natural Science), the total magnification of a compound microscope (for example) is calculated by multiplying the magnification power of the objective lens and the eyepiece (ocular) lens. So the two blanks should be filled with "objective" and "ocular" (or "eyepiece") respectively.

Answer:

The first blank: objective; The second blank: ocular (or eyepiece)