Consider the following assumption:
1. The fluid is compressible.
2. The fluid is inviscid.
3. The fluid is incompressible and homogeneous
4. The fluid is viscous and compressible.
The Euler’s equation of motion requires assumptions indicated in
(a) 1 and 2 (b) 2 and 3
(c)1 and 4 (d) 3 and 4