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Periscope is used to
  • a)
    view objects placed at a higher level from a position at lower level.
  • b)
    magnify extremely small objects into bigger images
  • c)
    observe the distant images such as planets and stars
  • d)
    analyse the spectrum formed by the sunlight 
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Periscope is used toa)view objects placed at a higher level from a pos...
Understanding Periscopes
Periscopes are fascinating optical devices primarily used to observe objects that are not in the direct line of sight. Here’s a detailed look at their functionality and purpose.
How Periscopes Work
- A periscope consists of a long tube with two mirrors positioned at 45-degree angles at each end.
- Light from an object above the observer's level enters the top mirror, reflects off the bottom mirror, and then travels down the tube to the observer's eye.
Application of Periscopes
- Viewing from Below: Periscopes are especially useful in situations where the observer is at a lower level. For example, submarines use periscopes to see above water while remaining submerged.
- Military Use: They are also utilized in military tanks to allow soldiers to see outside without exposing themselves to danger.
Why Option A is Correct
- The correct answer, "view objects placed at a higher level from a position at lower level," accurately describes the primary function of a periscope.
- The other options listed (b, c, d) refer to different optical instruments or functions that do not align with the basic purpose of a periscope.
In Conclusion
Periscopes are essential tools that enable individuals to observe high-level objects safely and efficiently, making them invaluable in various fields, including military operations and underwater exploration.
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Community Answer
Periscope is used toa)view objects placed at a higher level from a pos...
C)observe the distant images such as planet and stars.
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Periscope is used toa)view objects placed at a higher level from a position at lower level.b)magnify extremely small objects into bigger imagesc)observe the distant images such as planets and starsd)analyse the spectrum formed by the sunlightCorrect answer is option 'A'. Can you explain this answer? for Class 7 2025 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about Periscope is used toa)view objects placed at a higher level from a position at lower level.b)magnify extremely small objects into bigger imagesc)observe the distant images such as planets and starsd)analyse the spectrum formed by the sunlightCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 7 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Periscope is used toa)view objects placed at a higher level from a position at lower level.b)magnify extremely small objects into bigger imagesc)observe the distant images such as planets and starsd)analyse the spectrum formed by the sunlightCorrect answer is option 'A'. Can you explain this answer?.
Solutions for Periscope is used toa)view objects placed at a higher level from a position at lower level.b)magnify extremely small objects into bigger imagesc)observe the distant images such as planets and starsd)analyse the spectrum formed by the sunlightCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 7. Download more important topics, notes, lectures and mock test series for Class 7 Exam by signing up for free.
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