Which of the following statements is/are incorrect?1. The value of G on the Moon is equal to the value of G on Earth.2. The gravitational force applied between two objects placed at a distance of 1 meter from each other, whose masses are of 2 kg each, is 26.68 × 10-11 N.3. Newton's law of gravity is valid only in the laboratory.4. Force is inversely proportional to the square of the distance between two objects.
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