Question

Charecteristics of a good beam balance

Answer 1

The beam balance is a device used for the determination of the mass of a body under gravitation. It consists of a beam supported at the centre by an agate knife edge resting on a support moving inside a vertical pillar. The beam carries a light pointer which moves over a scale.

Answer 2

• Both pans are of equal mass.
• Both the arms are of equal length.
• Both the pants are suspended with strings of equal length and mass.
• The Beam is horizontal and the pointer vertical ,when nothing is placed on either pan .