A microscope and a telescope each consist of two converging lenses. In which one of the following wa

Question

A microscope and a telescope each consist of two converging lenses. In which one of the following ways is the telescope similar to the microscope when both are in normal adjustment ?

Professor PC Thomas Classes · Answer

In both instruments:
1. Intermediate Image: The objective lens forms a real, inverted image.
2. Final Image: The eyepiece acts as a magnifying glass for that intermediate image, producing a final image that is virtual and inverted relative to the original object.

Why the other options are incorrect:
- Option B: Separation $L=f_o+f_e$ only applies to the telescope in normal adjustment. For a microscope, $L \approx v_o+f_e$.
- Option C: While both intermediate images are inverted, only the microscope's intermediate image is magnified. A telescope's objective produces a diminished intermediate image (since the object is at infinity).
- Option D: In normal adjustment, the intermediate image is in the focal plane of the eyepiece, which makes the final image appear at infinity.