Question

We use a lactometer to test whether the milk is pure or not. True or False
(A) True
(B) False

Answer 1

The above problem can be resolved using the fundamentals and applications of lactometers. The lactometers are the particular devices that can be utilized to determine the density of the milk. And this reading of density or the value of density is used to measure the extent of milk purity. Moreover, the lactometer always provides some specific readings in terms of density units, which need to be compared with that of the standard unit.

Complete step by step answer:
Lactometer is one of the most commonly used devices that can measure the purity of milk. And this measurement is done through determining the density of the milk. Moreover, the lactometer is a device that can be utilized by the dairy industry to measure the standards of the purification of the milk, generally cow milk. In a mathematical sense, the cow milk has some numerical value of the specific gravity, and for the sake of purification. There are certain standards for which the calculated magnitude of specific gravity is compared. If the calculated value of specific gravity matches the standard value, one can conclude that the milk is pure, otherwise declared as impure milk. Therefore, the statement is true, and option (A) is correct.

Note: Try to understand the principle and working of the Lactometer. The Lactometer is a device that is majorly used by the dairy farms to check on the quality of milk, to ensure the good and healthy dairy products in the local markets. Moreover, this device does so by comparing the densities of the milk.