When the image formed by the objective is not situated in the plane of cross-hairs,

Related MCQs

• The image formed by the objective in the plane of cross hairs is
• The real image of an object formed by the objective, must lie
• The real image of an object formed by the objective must lie at the centre of telescope.
• After fixing the plane table to the tripod, the main operations which are needed at each plane table station are i) levelling ii) orientation iii) centering The correct sequence of these operations is
• Which of the following does not belong to the instruments of plane table?
• While viewing through a level telescope and moving the eye slightly, a relative movement occurs between the image of the levelling staff and the cross hairs. The instrument is
• In internal focusing telescope brilliancy of image reduces due to extra internal lens.
• If the definition of a telescope is poor, it will produce a clear and district image.
• The capacity of telescope of producing a sharp image is called its
• The magnification of a telescope is the ratio of the angle subtended at the eye by the virtual image of the object to that subtended by the object.