What part of the light microscope connects the eyepiece to the revolving nosepiece with the objectives?

The part of the light microscope that connects the eyepiece to the revolving nosepiece is called the body tube (or optical tube). It ensures proper alignment of the optical components, allowing light to travel from the objectives through the tube to the eyepiece for magnification. This alignment is crucial for obtaining a clear and focused image of the specimen being observed.