Civil Engineering - Advanced Surveying - Discussion
Discussion Forum : Advanced Surveying - Section 1 (Q.No. 23)
23.
The relief displacement of a minar 72 m high on photograph is 7.2 mm and its top appears 10 cm away from principal point. The flying height of the camera, is
Discussion:
3 comments Page 1 of 1.
Inayat Ullah Kakar said:
6 months ago
As we know the relations between;
B = bH/f.
By Rearrange;
H = Bf/b.
Here,
H = flying height
B = air Base = 72m.
b =photographic base = 7.2mm,
f = focal length = 10cm.
So,
H = 72 × 0.1/0.0072.
H = 1000m.
B = bH/f.
By Rearrange;
H = Bf/b.
Here,
H = flying height
B = air Base = 72m.
b =photographic base = 7.2mm,
f = focal length = 10cm.
So,
H = 72 × 0.1/0.0072.
H = 1000m.
(3)
Vishwajeet patel said:
4 years ago
BH/f = 72 * 0.1/0.0072 = 1000M.
(1)
RANJAN PATRA said:
9 years ago
72*0.1/0.0072 = 1000 M.
(1)
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