Question

Name the phenomenon due to which the weight of a body decreases when it is
liquid or gas​

Answer 1

Answer:

ok let me help you,

Explanation:

“A body immersed in a liquid loses weight by an amount equal to the weight of the liquid displaced.”

Thus, when a solid is fully immersed in a liquid, it loses weight which is equal to the weight of the liquid it displaces.

weight of solid in air- weight of solid when immersed in liquid= loss of weight in solid.

The more the density of liquid in which the solid is immersed, the less is the weight of the liquid displaced on immersing the solid

hope this helps.. if it does not you can ignore it

over and happy to help:)

Answer 2

Answer:

Archimedes The principal states that "A body immersed in a liquid loses weight by an amount equal to the weight of the liquid displaced."