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In which of the following cases, tangential method of tacheometry is used?
  • a)
    when telescope is not equipped with the stadia diaphragm
  • b)
    when telescope has two stadia diaphragm
  • c)
    when telescope has three stadia diaphragm
  • d)
    none of these
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
In which of the following cases, tangential method of tacheometry is u...
Explanation:

When is the tangential method of tacheometry used?
- The tangential method of tacheometry is used when the telescope is not equipped with the stadia diaphragm.

What is a stadia diaphragm?
- A stadia diaphragm is a device in the telescope that allows for the measurement of distances in tacheometry.

How does the tangential method work?
- In the tangential method, the horizontal line of sight is kept horizontal while the vertical line of sight is inclined at a known angle.
- The distance to the staff is then calculated using trigonometry and the known angle of inclination.

Why is the tangential method used in this case?
- In the absence of a stadia diaphragm, the tangential method provides a way to measure distances accurately using the principles of tacheometry.
Therefore, in cases where the telescope is not equipped with a stadia diaphragm, the tangential method of tacheometry is used to measure distances effectively.
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Community Answer
In which of the following cases, tangential method of tacheometry is u...
The tangential method of tacheometry is preferred when stadia hairs are not present in the diaphragm of the instrument or when the staff is too far to read.
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In which of the following cases, tangential method of tacheometry is used?a)when telescope is not equipped with the stadia diaphragmb)when telescope has two stadia diaphragmc)when telescope has three stadia diaphragmd)none of theseCorrect answer is option 'A'. Can you explain this answer?
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