Gauss's law part-1

Gauss's law part-2

For Gauss's law, mark the correct statements (s).

Mark the correct options about electric field and Gauss's law in a region of space :

Assertion: Column's law can be derived from Gauss's law. Reason: Gauss's law can be derived from Coulombs law.

Compare Gauss's law and Ampere's law.

Gauss's law is valid for

If Coulomb's law involved 1/r^3 (instead of 1/r^2) , would Gauss's law still be true?