Find correction for refraction for a distance of 1200 m?

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Question

Find correction for refraction for a distance of 1200 m?

Options:

A . 0.0106 m

B . 0.0160 m

C . 0.0016 m

D . 0.0116 m

Answer: Option B
Answer: (b).0.0160 m

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Question 1. Find the correction for curvature for a distance 1200 m?....

Question 2. When instrument is at P the staff readings on P is 1.824 and on Q is 2.748. When instrument at Q the staff readings on ....P is 126.386. Find combined correction for curvature and refraction?

Question 3. When an instrument is at P the staff readings on P is 1.824 and on Q is 2.748. When instrument at Q the staff readings o....of P is 126.386. Find the error due to collimation?

Question 4. When instrument is at P the staff readings on P is 2.748 and on Q is 1.824 when instrument at Q the staff readings on P ....R.L. of P is 126.386. Find error due to collimation?

Question 5. When instrument is at P the staff readings on P is 2.748 and on Q is 1.824 when instrument at Q the staff readings on P ....is 126.386. Find combined effect correction for curvature and refraction?

Question 6. When an instrument is at P the staff readings on P is 2.748 and on Q is 1.824 when instrument at Q the staff readings o....R.L. of P is 126.386. Find true R.L of Q?

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Question 9. Which of the following is not a natural error?....

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