What is a periscope simple definition?
A periscope is an optical instrument that uses a system of prisms, lenses or mirrors to reflect images through a tube. Light from a distant object strikes the top mirror and is then reflected at an angle of 90 degrees down the periscope tube.
What does the word periscope mean ?\?
English Language Learners Definition of periscope : a long tube that contains lenses and mirrors and that is used to look over or around something and especially by a person in a submarine to see above the surface of the water.
What’s another word for periscope?
Periscope Synonyms – WordHippo Thesaurus….What is another word for periscope?
| finder | bombsight |
|---|---|
| viewfinder | homing device |
| telescopic sight |
How do you use periscope in a sentence?
Periscope sentence example
- The word ” periscope ” was first applied to this instrument.
- Zeiss made a periscope 7 metres long, main tune 150 mm.
- The modern practice is to take rapid observations rather than to keep the periscope above the water all the time.
- In an ingenious periscope designed by Messrs.
What is periscope and its function?
A periscope is an instrument for observation over, around or through an object, obstacle or condition that prevents direct line-of-sight observation from an observer’s current position. Military personnel also use periscopes in some gun turrets and in armoured vehicles.
What is periscope principle?
It works on the principle of simple reflection. Light from the object is reflected by a series of mirrors inclined at a certain angle which allows it to reach the observer bypassing obstacles that may have been present in a straight line path from the object to the observer.
What is ment by periscope?
Periscopenoun. An optical instrument of tubular shape containing an arrangement of lenses and mirrors (or prisms), allowing a person to observe a field of view otherwise obstructed, as beyond an obstructing object or (as in submarines) above the surface of the water. Etymology: [Pref. peri- + -scope.]
What is the purpose of a periscope?
Periscope, optical instrument used in land and sea warfare, submarine navigation, and elsewhere to enable an observer to see his surroundings while remaining under cover, behind armour, or submerged.
What is the opposite of a periscope?
We have listed all the opposite words for periscope alphabetically. loser. also-ran. deadbeat. defeated.
What are antonyms for periscope?
antonyms for periscope
- loser.
- owner.
- stray.
What was the periscope used for?
What is the usage of periscope?
A periscope lets you look around walls, corners or other obstacles. Submarines have periscopes so that people inside can what is on the surface of the water. A periscope is a useful example of the law of reflection at work.
What are the uses of a periscope?
Periscope, optical instrument used in land and sea warfare, submarine navigation, and elsewhere to enable an observer to see his surroundings while remaining under cover, behind armour, or submerged.
What does the name Periscope mean?
Periscope (noun) an optical instrument of tubular shape containing an arrangement of lenses and mirrors (or prisms), allowing a person to observe a field of view otherwise obstructed, as beyond an obstructing object or (as in submarines) above the surface of the water. Etymology: [Pref. peri- + -scope.]
What is the function of periscope?
The periscope is an instrument for observation over, around or through the object, obstacle or condition that prevents direct line-of-sight observation from the observer’s current position, The periscope is used to monitor the dangerous chemical reactions in the laboratory and they are used in observing the nuclear reactors.
What are the components of a periscope?
Essentially, a periscope consists of a vertical tube with a head prism inclined to the horizon at an angle of 45 degrees, a reducing telescope , and, at the bottom of the tube, an enlarging telescope and a lower prism facing the head prism and parallel to and below it.
