Question

Question 76:
What is the actual shape of the orbit of a planet around the sun ? What assumption was made by Newton regarding the shape of an orbit of a planet around the sun for deriving his inverse square rule from Kepler’s third law of planetary motion ?

Lakhmir Singh Physics Class 9

Answer 1

Answer:

It is oval in shape

Explanation:

I think so

Answer 2

Explanation:

A planet's orbit around the Sun (or around a planet's satellite) is not a ideal circle. It's an ellipse — a circle that's "flattened." The Sun (or the planet's middle) occupies one ellipse focus. A focus is one of two inner points helping to determine an ellipse's shape.

However, according to Kepler’s third law of planetary motion, Newton made an assumption regarding the shape of an orbit, stating that the shape of an orbit of a planet around the sun is circular.