science
Grade6
Easy
Question
Which of the following is used in the submarines to see what is happening on the surface of the sea?
- Mirror
- Periscope
- Telescope
- Kaleidoscope
Hint:
The mirrors are set parallel to each other at an angle of 45 degrees in periscopes.
The correct answer is: Periscope
- A periscope is an optical instrument that uses a system of mirrors and prisms to reflect an image onto the instrument's tube.
- Periscopes are used on submarines.
- With the help of a periscope, you can see objects above the surface of the water.
- A periscope is therefore an instrument used by submarines to observe objects on the surface of the water.
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