Q. The net ground area of a vertical photograph 20 cm x 20 cm on scale 1 : 10,000 having overlaps 60% and 30%, is

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Q. Rotation of the camera at exposure about its vertical axis, is known as

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Q. The difference of height of two points whose parallax difference is 0.8 mm on a pair of stereo pair taken from a height H is 100 m. If mean photo base is 95.2 mm, the flying height is

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Q. The flying height of the camera is 1, 000 m above mean ground level, the distance of the top of a Minar from a nadir point is 10 cm and the relief displacement of Minar is 7.2 mm. The height of the Minar, is

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Q. On vertical photographs, height displacement is

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Q. The foot of the perpendicular on the picture plane through the optical centre of the camera lens, is known as

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Q. The point where a vertical line through the optical centre of the camera lens intersects the ground, is known as

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Q. At eastern elongation, the pole star moves

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Q. Circumpolar stars

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Q. By applying clockwise swing to right projector, maximum y-parallax is introduced in the model at

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Q. The moon rotates round the earth once in every

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Q. The First Point of Aeries

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Q. The parallax of a point on the photograph is due to

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Q. A star may culminate at zenith if its declination is

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Q. For adjusting a quadrilateral whose both the diagonals are observed, the equations of conditions involved, are

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Q. The nearest star is so far away from the earth that the directions to it from two diametrically opposite points on the earth differs less than

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Q. The station where observations are not made, but the angles at the station are used in triangulation series, is known as

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Q. Spring tides are caused when

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Q. Longitude of a place is the angular distance between the meridian of the place and

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Q. In field astronomy, the quantities observed are entirely

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