1.

This question contain Statement-1 and Statement-2. Of the four choices given after the statements, choose the one that best describes the two statements. Statement-1: For a mass M kept at centre of a cube of side 'a', the flux of gravitational field passing through its sides 4piGM. and Statement-2: If the direction of a field due to a point source is radial and its dependence on the distance 'r' from the source is given as (1)/(r^(2)), its flux through a closed surface depends only on the strength of the source enclosed by the surface and not on the size or shape of the surface.

Answer»

Statement-1 is false, Statement-2 is true.
Statement-1 is true, Statement-2 is true, Statement-2 is CORRECT explanation for Statement-1.
Statement-1 is true, Statement-2 is true, Statement-2 is not a correct explanation for Statement-1.
Statement-1 is true, Statement-2 is false.

Solution :Statement 1 and statement 2 both are correct and statement 2 is a correct EXPLAINATION of statement 1.
So the correct CHOICE is B.


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