Question

Please solve this question as fast as you can
and I will mark your answer is brainliest​

Answer 1

(a) (i)

KEY CONCEPT:

Since the cylinder is in equilibrium in the liquid therefore Weight of cylinder = upthrust

mg = {F_T }__1+ {F_T }__2where

{F_T }__1and {F_T }__2= upthrust due to lower and upper liquid respectively

A / 5 x L x D x g = A / 5 x L / 4 x 2d x g + A / 5 x 3L / 4 x d x g

⇒ D = 2d / 4 + 3d / 4 = 5d / 4