What is periscope mention its principle and uses?
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 is a periscope which principle is used to construct this device?
A periscope works on the principle of reflection of light from one plane mirror placed at an angle(450) parallel to other plane mirror. Diagram shows the position of mirrors and light rays. Importance of periscope : Periscope is used by the submariners to view the objects at the surface of water.
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 the principle behind the working of periscope and kaleidoscope?
Principle Of Kaleidoscope The basic principles used in the kaleidoscope are the law of reflection, and white light is a combination of VIBGYOR. When the white light hits the surface of the mirror, it gets reflected at an angle such that the angle of incidence is equal to the angle of reflection.
Which mirror is used in periscope?
plane mirrors
Where do we use periscopes?
Uses Of Periscope
- It is used in submarines to determine the distance of a torpedo and helps in deciding the right time for the attack.
- It is used in a nuclear reactor to observe the chemical reactions that are taking place.
- In military periscopes are used to observe from their hiding position.
What are the advantages of periscope?
5 Benefits of Using Periscope:
- Increased Access to Guest Speakers.
- Creation of Multimedia Projects.
- Facilitating Interpersonal/Professional Relationships.
- Expanding Educational Opportunities.
- Decreasing Reliance on the Media Binary (TV and Video)
How many types of periscopes are there?
The 13 Types Of Periscope Chatters – A Survival Guide For Scopers! So Periscope comes along and it’s super cool.
What is the definition of periscope?
: a tubular optical instrument containing lenses and mirrors by which an observer obtains an otherwise obstructed field of view.
What are antonyms for periscope?
antonyms for periscope
- loser.
- owner.
- stray.
How do you use periscope in a sentence?
Periscope in a Sentence 🔉
- Although the soldier was positioned in a ditch, he was able to use a periscope to observe the enemy camp above ground.
- A periscope uses lenses and mirrors to provide a user with an unbarred view of an area that would normally be impossible to see.
Where does the word periscope originate from?
periscope (n.) viewing apparatus on a submarine, by which objects in a horizontal view may be seen through a vertical tube, 1899, formed in English from peri- “around” + -scope “instrument for viewing.” Earlier (1865) a technical term in photography. Related: Periscopic.
What is a brusque person?
adjective. If you describe a person or their behavior as brusque, you mean that they deal with things, or say things, quickly and shortly, so that they seem to be rude.
What does Jerkline mean?
: a single rein used originally in the western U.S. that was fastened to the brake handle and ran through the driver’s hand to the bit of the lead animal.
What does archly mean?
If you say something archly, you express it in a teasing sort of way. When someone acts archly toward you, it might offend you a bit, or it might make you laugh.
What does it mean to smile archly?
in an amused way that suggests you know more about something than someone else does: She smiled archly at him.
What does complaisance mean?
: disposition to please or comply : affability. Synonyms Example Sentences Learn More About complaisance.