# The want of correspondence in stereo-photographs

A. Is a good property

B. Is a function of tilt

C. Is not affected by the change of flying height between photographs

D. Is minimum when θ is 3°

**Answer: Option B **

Related Questions on Surveying

**The correction applied to the measured base of length ‘L’ is
**

A. Tension = (P - Ps)L/AE

B. Sag = L³w²/24P² where w is the weight of tape/m

C. Slope = (h²/2L) + (h⁴/8L³) where h is height difference of end supports

D. All the above

A. 99.345 m

B. 100.345 m

C. 100.655 m

D. 101.870 m

**The distance between the projection centre and the photograph, is called**

A. Principal distance

B. Principal line

C. Isocentric distance

D. Focal length

A. f/H sec θ

B. f sec θ/H

C. f/H

D. f/H cos ½θ

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