Answer: The ocular and objective lenses are found at the top and bottom of the arms of a microscope.
Step-by-step explanation:
Because the Arms of a microscope supports the body tube and body tube is the tube through which light passes from the objective lens to ocular lens.
Ocular lens helps in magnifying the image whereas objective lenses firstly collect light from specimen and then magnifying the image of it.
Hence, The ocular and objective lenses are found at the top and bottom of the arms of a microscope.