Zero angle

The value of angle of dip is zero at the magnetic equator because on it

If the work done is zero, then the angle between the force and displacement is

Value of Impact parameter will be zero, when scattering angle is

The dipole moment of CO_(2) is zero, because its bond angle is

Classify the following angles as acute, obtuse, straight, right, zero and complete angle: 118 (ii) 29 (iii) 145 (iv) 165 (v) 75