Maharashtra Board Solutions for Chapter: Mechanical Properties of Fluids, Exercise 11: Use your brain power

C.G.S. unit of the coefficient of viscosity is Poise. Find the relation between Poise and the S.I. unit of viscosity. 

A water pipe with a diameter of $5.0 \mathrm{cm}$ is connected to another pipe of diameter $2.5 \mathrm{cm}$. How would the speeds of the water flow compare?