ICSE Class 9 Answered
What is a hydrometer? State the principle of hydrometer?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
1. Hydrometer is a device used for measuring densities of liquids.
2. Hydrometer is based on the principle of flotation, which states that when a body is floating in a fluid, then the weight of the fluid displaced by the immersed part of the body, acting vertically upward through centre of buoyancy is equal to the weight of floating body.
Answered by | 04 Jun, 2014, 03:23: PM