Assertion (A): In a theodolite, if the line of collimation is not exactly perpendicular to the horizontal axis of the instrument, it will not revolve in a vertical direction plane when the telescope is raised or lowered.
Reason (R): The rotation of the telescope would generate a cone with its axis coinciding with the horizontal axis.
1
Both assertion (A) and Reason (R) are individually true and Reason (R) is the correct explanation of Assertion (A)
2
Both Assertion (A) and Reason (R) are individually true but Reason (R) is NOT the correct explanation of Assertion (A)
3
Assertion (A) is true but Reason (R) is false
4
Assertion (A) is the false but Reason (R) is true