Final answer:
The total magnifications for a microscope using an eyepiece (ocular lens) with 10x magnification combined with objective lenses of 40x, 100x, and 400x are 400x, 1000x, and 4000x, respectively.
Step-by-step explanation:
The subject of the question refers to calculating the total magnification of images viewed under a microscope using different objective lenses. For a compound microscope, the total magnification is determined by multiplying the magnification power of the objective lens with the magnification power of the eyepiece, also known as the ocular lens. If a microscope has an eyepiece that magnifies by 10x, and you are using an objective lens with magnifications of 40x, 100x, and 400x, the respective total magnifications would be:
- 40x objective lens: (40x) × (10x) = 400x
- 100x objective lens: (100x) × (10x) = 1000x
- 400x objective lens: (400x) × (10x) = 4000x
It is important to know these magnification levels as they allow scientists to observe microorganisms or cell structures at appropriate scales.