Question

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. Gravity is the strongest of the four
• B. Electromagnetism acts only on particles with an electric charge
• C. Weak nuclear force causes radioactivity
• D. Strong nuclear force holds protons and neutrons inside the nucleus of an atom

Answer 1

The correct option is A Gravity is the strongest of the four

Statement A is wrong because gravity is the weakest force among the four fundamental forces.
Rest of the statements are correct.