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Which of the following telescope is used in modern surveying instruments?
External focusing telescope
Internal focusing telescope
Both A and B
None of the above
Internal focusing telescope
Practice and solve "Which of the following telescope is used in modern surveying instruments?..." for Civil - Surveying · The correct answer is Option B: Internal focusing telescope · Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Option **(b) **