You can use the word Periscope a few ways in a sentence. You can write the sentence I am going to periscope the website.
it reflects
There are no mirrors in a periscope - they use prisms. But you could use two at 45 degrees to the object and observer, parallel to one another
The Captain used the periscope to locate the enemy ships.A periscope is the eye of a submarine.
The Reflection.
look through it. that usually works.
The basic periscope uses flat mirrors, to bend and offset the optical path. If magnification is required, then the periscope will use convex objective and eyepiece lenses, becoming a refracting telescope with an offset in its optical path.
In paintball wars, a periscope is a handy way to look around a corner without getting shot. With only its periscope out of the water, a submarine was nearly impossible to spot at a distance.
The mirrors are fitted at 45 degree angles in a periscope in the opposite directions. when you see through the periscope, the image gets reflected.
Mirrors for the simplest, combined with optics if your periscope has magnification. It may well incorporate direction and range indication.
Down periscope!
they use diffrent mirrors