Lactometers used to determine the purity of a sample of milk and hydrometers used to determine the d...........

General Studies (CPO) General Science

Lactometers (used to determine the purity of a sample of milk) and hydrometers (used to determine the density of liquids) are based

on the ______ principle.

This questions was previously asked in

SSC CPO 12th Dec 2019 Shift-1

Archimedes

Uncertainty

Special Relativity

Relativity

- Option 1: Archimedes Principle

- Lactometers and hydrometers operate on Archimedes' Principle.

- This principle states that a body submerged in a fluid is buoyed up by a force equal to the weight of the fluid displaced.

- It helps measure the density or purity by observing the levels of submergence.

- Option 2: Uncertainty Principle

- Related to quantum mechanics and formulated by Heisenberg.

- It states that the position and momentum of a particle cannot both be precisely determined simultaneously.

- Not relevant to lactometers or hydrometers.

- Option 3: Special Relativity

- Developed by Albert Einstein.

- Deals with the physics of objects moving at constant high speeds.

- Not applicable to density measurement.

- Option 4: Relativity

- A broader theory encompassing special and general relativity.

- Concerns gravity and high speeds, not liquid density or purity measurement.

The correct answer is Option 1: Archimedes Principle.

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