Question

12. In earth-sun system, if sun starts to shrink then
force on earth due to sun (Assuming that mass of
sun is constant)
(1) Decreases
(2) Increases
(3) Remains same
(4) First decreases then increases​

Answer 1

Answer:

(1) Decreases

Explanation:

as the sun is shrinking it's radius decreases

the distance between sun and earth increases

we know mutual force of attraction i.e

F = GMm/ r^2

r^2 increases hence force on earth decreases

Answer 2

Force on earth due to sun

Explanation:

Learn more :https://brainly.in/question/13198650

Lets take

The mass of the sun = M

The mass of the earth = m

The distance between earth and sun = r

we know that ,then gravitational force between two mass is given as follows

$F=G\dfrac{m_1m_2}{R^2}$

Where , G= Constant

Therefore the mass between sun and earth

$F=G\dfrac{mM}{r^2}$

.The mass of the sun and earth is constant, That is why the force between them will remains constant.

Therefore the answer will be (3) Remains same.