Define angle of rotation.

Define angle of friction and angle of repose. Show that both are numerically equal.

When 20 gm optically active compound is placed in a 10 dm tube, in a 200 ml solution rotates the PPL by 30^(@) : (a) What is the angle of rotation if above solution is dilute to 1 litre ? (b) What is the specific angle of rotation if above solution is diluted to 1 litre ?

Define order of rotational symmetry.

ANGLE OF ROTATION The angle through which an object rotate (turns) about a fixed point is known as the angle of rotation.

Define angle of dip.

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

A bar magnet is held at right angle to a uniform magneitc field. The couple acting on the acting on the magnet is to be halved by rotating it form this position. The angle of rotation is

Define angle of contact and surface energy.

State whether the given statement is True or False: The order of rotational symmetry of a figure is 4 and the angle of rotation is 180^(@) only.