Q. While making astronomical observations, the observer is mainly concerned with

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Q. The most convenient co-ordinate system for specifying the relative positions of heavenly bodies on the celestial sphere, is

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Q. In a tropical year, the number of sidereal days, are

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Q. Pick up the correct statement from the following :

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Q. Polaris is usually observed for the determination of the azimuth when it is

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Q. The latitude (λ) of a place and the altitude (α) of the pole are related by

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Q. The angle between the axis of earth and the vertical at the station of observation is called

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Q. For any star to be a circumpolar star, its

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Q. The elevation of the star at elongation is obtained by

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Q. The necessary geometrical condition for triangulation adjustment, is :

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Q. Assuming human normal vision distance 25 cm, smallest measurable angle 20", and introcular distance 6.5 cm, the smallest depth to be discerned is

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Q. The main object of the astronomer to obtain

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Q. If f is the focal length of the camera lens and θ is the angle of tilt, the distance of the plumb point from the principal point will be

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Q. Pick up the incorrect statement from the following. High oblique photographs

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Q. The average eye base is assumed as

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Q. Pick up the correct statement from the following :

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Q. Pick up the incorrect statement from the following :

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Q. To obtain photographs of an area of 1000 m average elevation, on scale 1 : 30, 000, with a camera of 30 cm focal length, the flying height is

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Q. If the image of a triangulation station of R.L. 500 m is 4 cm from the principal point of a vertical photo taken from an altitude of 2000 m, above datum, the height displacement will be

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Q. An aerial photograph may be assumed as

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