The angle of intersection of the horizon glass and index glass in an optical square is

Related MCQs

• The horizon glass in an optical square is
• The angle of intersection of the two plane mirrors of an optical square is
• The index glass in an optical square is
• An imaginary line joining the point of intersection of the cross-hairs of the diaphragm and the optical centre of the object glass, is known as
• In an optical square, the angle between the first incident ray and the last reflected ray is
• The imaginary line passing through the intersection of cross hairs and the optical center of the objective, is known as
• If altitude bubble is provided both on index frame as well as on telescope of a theodolite, then the instrument is levelled with reference to i) altitude bubble on index frame ii) altitude bubble on index frame if it is to be used as a level iii) altitude bubble on telescope iv) altitude bubble on telescope if it is to be used as a level The correct answer is
• The deflection angle for any chord is equal to the deflection angle for the proceeding chord minus the tangential angle for that chord.
• A line joining the optical centre of the object glass and the centre of the eye piece, is known as
• The optical square is used to measure angles by