Question

what will the duration of one year if distance between sun and Earth becomes double the present distance the present duration of year is 365days

Answer 1

All of the bodies in the solar system — planets, asteroids, comets, etc. — revolve around it at various distances.

The distance from Earth to the sun is called an astronomical unit, or AU, which is used to measure distances throughout the solar system. 

The AU is the average distance from the Earth o the Sun. Earth makes a complete revolution around the sun every 365.25 days — one year.

However, Earth's orbit is not a perfect circle; it is shaped more like an oval, or an ellipse. Over the course of a year, Earth moves sometimes closer to the sun and sometimes farther away from the sun. Earth's closest approach to the sun, called perihelion, comes in early January. The farthest from the sun Earth gets is called aphelion




Answer:

Doubling the distance from the sun reduces gravitational pull and increases the orbital period.

Explanation:

Using Newton's model of gravity the force or pull F is given by:

F=GMm/r²

Where
G : gravitational constant,
M : mass of the Sun,
m : mass of the Earth, and
r. : distance between Sun and Earth.

So, doubling the distance reduces the force by a factor of 4.

Kepler's third law relates the semi-major axis distance a in AU(Astronomical Units) to the orbital period P in years.

P²=a³

In the case of Earth in its current position P=1and a=1. If the distance was doubled then a=2 and:

P²=2³=8

This would make the orbital period P=2.828years.

Answer 2

Answer:

T^2 is directly proportional to r^3

Using this relation we get,

the answer =1032 days