The optical square used for setting out......................... angle
A0°
B45°
C60°
D90°
A0°
B45°
C60°
D90°
Related Questions:
Which of the following situations is/are possible?
(a) Magnetic field lines can be parallel to each other.
(b) Magnetic field lines can be concentric circles.
(c) Magnetic field lines can intersect each other.