Magnitude of an angle the magnitude of an angle is the amount of rotation through which one of the arms must be rotated about the vertex to bring it to the position of the other arm.

The point represented by the complex number 2+i rotated about the origin through an angle (pi)/(2) . The new position of the point is

When a plane mirror is rotated through an angle theta then the reflected ray turns through the angle 2 theta then the size of the image

If the earth stops rotating about its axis, then the magnitude of gravity

A "bar" magnet is at right angles to a uniform magnetic field. The couple acting on the magnet is to be one fourth by rotating it from the position. The angle of rotation is

Two vectors of magnitudes 5 and 3 give a resultant of magnitude 2. What must be the angle between the two vectors ?

Show that a ray of light reflected from a plane mirror rotates througha an angle 2theta when the mirror is rotated through an angle theta about its axis perpendicular to both the incident ray and the normal to the surface.

When mirror is rotated through an angle theta , a reflected ray from it moves through an angle of

A bar magnet is suspended in a uniform magnetic field in a position such that it experiences maxiumum torque. The angle through which it must be rotated from this position such that it experiences half of the maximum torque. The angle through which it must be rotated from this positon such that it experiences half of the maxium troque is

The magnitude of the rotational barrier in propane arising on account of torsional strain is about