Question

# Gauss's law should be invalid if The velocity of light were not a universal constantThere were magnetic monopolesThe inverse square law were not exactly trueNone of these

Solution

## The correct option is C The inverse square law were not exactly trueIf the inverse square law were not true, Electric field would not decrease in proportion to increase in surface area of a sphere(with increase in radius.)  E α 1r2 A α r2 So ϕ does not change if the gaussian surface changes.

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