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The magnification of a compound microscope can be calculated by multiplying the magnification of its objective lens with that of its ocular lens. If the magnifications of the objective and ocular lenses are 40 and 10 respectively, what is the total magnification?

1. Magnification refers to the ability to enlarge an object's appearance.
2. The total magnification of a compound microscope is derived by multiplying the magnifications of its objective and ocular lenses.
3. Magnification is given by the ratio of the image size formed by the instrument to the size visible to the naked eye.
4. The product of the objective lens and ocular lens magnifications is 40 × 10, resulting in 400.

Correct answer: The product of the objective lens and ocular lens magnifications is 40 × 10, resulting in 400.

Solution

The question asks for the correct calculation of magnification, and option D provides the correct numerical result (40 × 10 = 400 times).

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