Streamline flow is more likely for liquids with,

(a) high density. (b) high viscosity.
(c) low density. (d) low viscosity.

Choose the correct option:

1. (a), (b) 2. (c), (d)
3. (b), (c) 4. (a), (d)
 
(3) Hint: In streamlined flow, the velocity of particles at a point remains the same.

Explanation: Streamline flow is more likely for liquids having a low density. We know that the greater the coefficient of viscosity of a liquid more will be the velocity gradient, hence each line of flow can be easily differentiated. Also, the higher the coefficient of viscosity, the lower will be the Reynolds number, hence the flow more like to be streamlined.