Question

Observe the given figure and answer the following questions.

1. Where is the above type of lens construction used?
2. What type of image is formed by an objective lens?
3. What happens instead of placing at F_o if the object is placed in between O and F_o?

Answer 1

1. The above type of lens construction is used in a compound microscope.
2. The image formed by the objective is real, inverted, and formed at a distance within the focal length of the eyepiece.
3. If the object is placed in between O and F_o, a virtual image will be formed on the same side of the objective as that of the object. As a result, compound microscope will not be able to operate as expected.