Question No : 29
The great circle which passes through the zenith, nadir and the poles, is known as
Question No : 30
The great circle whose plane is perpendicular to the axis of rotation of the earth, is called
Question No : 31
If a star whose declination is 60° N culminates at zenith, its altitude at the lower culmination, is
Question No : 32
If S is the sum of three angles of a spherical triangle, the spherical excess equals
Question No : 33
The Polaris describes a small circle round the pole whose radius is approximately
Question No : 34
Rotation of the camera at exposure about its vertical axis, is known as
Question No : 35
The principal line is the line joining the principal point and