• A rod AB of length 50 cm is held horizontally with B to the east of A. It is rotated about a vertical axis through an angle of 37° northward. It is then rotated in a vertical plane to position where the angle with the vertical is 53°. Eastward distance between A and B is
    A) 32 cmB) 40 cmC) 24 cm D) 18 cm
  • A rod AB of length 50 cm is held vertically with A at the lower end. It is then rotated to make an angle of 53° with the vertical. Northward distance of B from A is
    A) 40 cmB) 30 cmC) 20 cm D) any of these
  • A rod AB of length 50 cm is held vertically with A at the lower end. It is rotated in a vertical plane about an axis through A so that the end B to the east of vertical. If vertical distance between A an B is 30 cm, horizontal distance between them is
    A) 40 cmB) 30 cmC) 20 cm D) any of these
  • A rod AB of length 50 cm is held vertically with A at the lower end. It is turned in a vertical plane towards north east by 53°. Eastward distance between A and B is
    A) 40√2 cmB) 30√2 cmC) 20 √2 cm D) any of these
  • A place on the earth has latitude of 60°. Distance of this place from the axis of the earth is
    A) R B) R/2 C) √3R/2 D) any of these