List of top Physics Questions on mechanical properties of fluid asked in JKCET

Which one of the following equation is Torricelli law?

A sphere of radius $R$ is gently dropped into liquid of viscosity $ \eta $ in a vertical uniform tube. It attains a terminal velocity $v$. Another sphere of radius $2\,R$ when dropped into the same liquid, will attain its terminal velocity

When the temperature increases, the viscosity of

If the excess pressure inside a soap bubble is balanced by oil column of height $ 2\,mm, $ then the surface tension of soap solution will be ( $ r=1\,cm $ and density $ d=0.8\, g/\,cc $ )