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The known forces of nature can be divided into four classes, viz., gravity, electromagnetism, weak nuclear force and strong nuclear force. With reference to them, which one of the following statements is not correct ?

A Weak nuclear force causes radioactivity
B Gravity is the strongest of the four
C Electromagnetism acts only on particles with an electric charge
D Strong nuclear force holds protons and neutrons inside the nucleus of an atom
Answer & Explanation
Option: [B]

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