Q$1.$

a$)$ Define the Specific Weight and Specific Gravity related to fluid.

$(04$ Marks$)$

b$)$ Two large plane surfaces are $2\mathrm{.}4cm$ apart. The space between the surfaces is filled with glycerine. What force is required to drag a very thin plate of surface area $0\mathrm{.}5m^2,$ at a distance of $0\mathrm{.}8cm$ from one of the plane surfaces, at a speed of $0\mathrm{.}6\frac{m}{s}?$ The dynamic viscosity of glycerine is $8\mathrm{.}10{10}^{-1}N\frac{s}{m^2}.$

$(06$ Marks$)$