The given image shows the working of which optical instrument ?

Q. A persons image appears on the far side of an optical instrument, upside down. What is the optical instrument?

Q. Optical instruments like the periscope and kaleidoscope use the property of ________ in order to create the final image or images.

Q. The ability of an optical instruments to show the images of two adjacent point objects as separate is called :

Q. Rahul performs an experiment of image formation with an optical instrument (various mirrors and lenses) and finds that the image formed is a diminished virtual image. What kind of optical instrument did Rahul use?