Question

What is archimedies principal? Write its applications and hence define relative density?

Answer 1

Answer:

if any object goes down in water, it displace the water the water displace by object = the volume of the object

Answer 2

Answer:

  Archimedes' principle states that the upward force that is exerted on a body when it is fully or partially immersed in a fluid, is equal to the weight of the fluid displaced by the body. It always acts in the upward direction.

Applications:

• used in designing ships and submarines
• used in lactometers
• used in hydrometers

Relative Density:

The ratio of the density of the fluid to the density of water. It has SI unit kg/m³ or  g/cm³.