Final Answer:
A compound light microscope has 2 lenses. The lens in the eyepiece has a magnification of 10X, and the objective lens has a magnification of 40X. The total magnification is A.
Step-by-step explanation:
The total magnification of a compound light microscope is calculated by multiplying the magnification of the eyepiece lens by the magnification of the objective lens. In this case, the eyepiece lens has a magnification of 10X, and the objective lens has a magnification of 40X. Therefore, the total magnification is calculated as 10X (eyepiece) multiplied by 40X (objective), resulting in a total magnification of 400X.
Option A, "400X," is the correct answer as it represents the combined magnification achieved through the eyepiece and objective lenses in the compound light microscope. This level of magnification allows for detailed examination of microscopic specimens, making it a common configuration in laboratory settings.
Option A is answer.