Question

(a) 'Lactometers are used to determine the purity of a sample of milk'. State the principle on which this instrument is based on. (b) Write two factors on which the buoyant force acting on a body when immersed in a liquid depends.

Answer 1

(a) Archimedes principle
(b) 1. Size or volume of body immersed in water.
2. Density of the liquid in which the body is immersed.