The angle between the plane of the negative and the horizontal plane containing perspective axis is the tilt of the photograph
The direction of maximum tilt is defined by the photo principal line
The principal plane is truly vertical plane which contains perspective centre as well as principal point and plumb point
All the above
D. All the above
Increases as the horizontal distance increases from the principal point
Increases as the ground elevation increases
Decreases as the flying height increases
All the above
The vertical plane containing the zenith, the station of observation and the celestial pole is the observer's meridian plane
The angle between the direction of star in vertical plane and the direction of the star in horizontal plane is called the altitude of the star
The complement of the altitude of star is called the zenith distance of the star
All the above
πR²E/90°
πR²E/180°
πR²E/270°
πR²E/360°
sin α = sin φ cosec δ
sin α = sin φ sec δ
sin α = cos φ sec δ
sin α = cos φ cosec δ
Eastward
Westward
Northward
Southward
Nadir point
Iso centre
Principal point
All the above
Is a good property
Is a function of tilt
Is not affected by the change of flying height between photographs
Is minimum when θ is 3°
Co-declination
Co-latitude
Declination
Latitude
Photo principal point
Ground principal point
Ground isocenter
All the above
Westward from the first point of Libra
Eastward from the first point of Aeries
Westward from the first point of Aeries
Eastward from the first point of Libra
sin c sin B
cos c cos B
tan c tan B
sin c cos B
Focal length of the camera
Overall size of the photo graphs
Percentage of overlap
All the above
Principal distance
Principal line
Isocentric distance
Focal length
Northward
Southward
From south to north of the equator
From north to south of the equator
Optical projection
Optical mechanism projection
Mechanical projection
All the above
0.01 second
0.001 second
0.0001 second
None of these
High oblique
Low oblique
Vertical
None of these
The standard meridian
The international date line
That of Greenwich
Both (a) and (c) of above
θ = z + δ
θ = δ - z
θ = 180° - (z + δ)
θ = (z + δ) - 180°
Rational horizon
True horizon
Celestial horizon
All the above
Lengths
Angles
Heights
All of these
f/H sec θ
f sec θ/H
f/H
f/H cos ½θ
10°
20°
30°
40°
Satellite station
Eccentric station
False station
Pivot station
Parallel to the principal line
Perpendicular to the principal line
Along the bisector of the angle between the principal line and a perpendicular line through principal plane
None of these
Co-declination
Co-altitude
Co-latitude
Polar distance
Every angle is less than two right angles
Sum of the three angles is equal to two right angles
Sum of the three angles less than six right angles and greater than two right angles
Sum of any two sides is greater than the third
Astronomical latitude
Astronomical co-latitude
Co-declination of star
Declination of star
Vernal equinox
Autumnal equinox
Summer solstice
Winter solstice
Opposite corners of a photograph
Nodal points of the camera lens
Corresponding points on the ground and photograph
Plumb points of stereo pair of photographs