Question

answer to these questions

Answer 1

microscope is used to observe micro organism which is not seen by our naked eye.

Answer 2

This type of arrangement is used in the submarines to observe the activities around the area especially above water.

The whole setup is of periscope that is one of the type of microscope that is used to make an image similar to the convex image but with the addition of reflecting mirror.

This allows the observer to receive the image and observe.