Question

The universal law of gravitation gives the gravitational force between
A) The Earth and a point mass only
B) The Earth and the Sun only
C) Any two bodies having some mass
D) Two charged bodies only

Answer 1

Hint: Try to recapture the formula of universal gravitational force, which depends on the mass of the two bodies and universal gravitational constant. From that formula of force which includes the Universal gravitational constant, will can get the answer of this question.

Formula used:
$\text{F=G}{\displaystyle \frac{{\text{m}}_{\text{1}}{\text{m}}_{\text{2}}}{{\text{r}}^{\text{2}}}}$

Complete step by step answer:
To know the answer of this question, let us know one thing,
Newton's law of gravitation is also known as universal law of gravitation.
So, now to get the answer of this question, let us write the formula of the Newton’s law of gravitational force
$\Rightarrow \text{F=G}{\displaystyle \frac{{\text{m}}_{\text{1}}{\text{m}}_{\text{2}}}{{\text{r}}^{\text{2}}}}$
In this formula,
F represents the Gravitational force,
G is the gravitational constant,
r is the radius of the earth,
${\text{m}}_{\text{1}}\text{ and }{\text{m}}_{\text{2}}$ are the mass of two bodies.
From the formula we can see that the Gravitational force is directly proportional to the masses of the two bodies.
Moreover, we can also see that it is inversely proportional to the radius of the earth.
Now, from the formula we can conclude that it gives the gravitational force between two bodies of some mass.
Hence, the other options are false, as there are more than one mass and no charged body is there.

Note:
Newton’s law of gravitation is also known as universal law of gravitation. It is the only law that gives the relationship between gravitational force and mass of two bodies, with gravitational constant.