If you mean in the periscope, two.
The periscope, and I believe they have a lot more than 2 mirrors.
A submarine's viewing point is called a "periscope." The periscope allows crew members to see above the water's surface while the submarine remains submerged. It typically consists of a series of mirrors and lenses that provide a clear view of the surroundings, enabling navigation and observation without exposing the submarine.
A periscope is the instrument used in a submarine to see above the surface of water. It works by using mirrors to reflect light down into the submarine while allowing for observation of the surface without exposing the submarine itself.
They Do It with Mirrors has 187 pages.
Depends on the type of submarine...
The instrument used in submarines to observe the surface of water is called a periscope. A periscope consists of a long tube with mirrors at each end, allowing the viewer to see objects above the water's surface while the submarine remains submerged. The periscope's mirrors reflect light from the surface down the tube to the viewer, providing a view of the surroundings without the need to surface the submarine.
The Submarine Caper has 187 pages.
To view physical appearance by own-self.answer #2grocery store scanners use mirrors to direct the lasers, many other laser applications use mirrors to move and direct the beams. Many industrial processes use mirrors and lasers to direct light and laser beams. You use mirrors to drive safely. Warehouses use mirrors on the corners to prevent collisions. Many camera have mirrors in them. We use mirrors for many different applications.
there are 43 chandeliers in the hall of mirrors.
False Mirrors has 416 pages.
There are three mirrors on the wall in the room.
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