The correct answer is option 1) i.e. Law of Universal Gravitation
CONCEPT:
Law of Universal Gravitation: It states that all objects attract each other with a force that is proportional to the masses of two objects and inversely proportional to the square of the distance that separates their centres.
It is given mathematically as follows:
F =
Gm1m2
R2
Where m1 and m2 are the mass of two objects, G is the gravitational constant and R is the distance between their centres.
EXPLANATION:
Every object in the universe attracts every other object with a force called gravitational force. Hence, the correct answer is the law of universal gravitation.