Nuclear Physics, Inverse square law verfication of gamma Ray's of Cs-137 source using GM counter

Dr. N. Ragini. Asdociate Professor of PhysicsGFGC, Kuvempunagar mysore-23

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Why it’s necessary that the distance between the source and the detector should be greater than the radius of the detector?

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Super mam

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Please send this in Urdu language please...