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| Q.44 | A camera having focal length of 30 cm is used to take vertical photography of a terrain having an average elevation of 1200 m. What is the height above the sea level at which the aircraft must fly in order to get the scale of 1:7000? | |
| Ans | A. 3600 m | |
| B. 2250 m | ||
| C. 3300 m | ||
| D. 3500 m |
Correct Ans: C
