Question 87
Read the description and look at Figure 10.48.
- Periscopes are used to let someone see things that are not directly in front of them.
- They are often used to look over or around obstructions.
- Periscopes were originally developed so that sailors in submarines could look at what was on the surface of the sea while they stayed underwater.
Explain how two mirrors can be placed in the periscope in Figure 10.49 to allow the sailor to view the tree above the water. Sketch a diagram to show the path of the light and the positions of the two mirrors in the periscope.
- Periscopes are used to let someone see things that are not directly in front of them.
- They are often used to look over or around obstructions.
- Periscopes were originally developed so that sailors in submarines could look at what was on the surface of the sea while they stayed underwater.
Explain how two mirrors can be placed in the periscope in Figure 10.49 to allow the sailor to view the tree above the water. Sketch a diagram to show the path of the light and the positions of the two mirrors in the periscope.
