Question

All the planets move around the sun in a

• A. Circular path
• B. Rectangular path
• C. Elongated path

Answer 1

The correct option is C

Elongated path

Explanation for correct option:

Option (c) Elongated path:

Kepler's First Law:

1. Kepler's First Law states that the orbit of each planet around the Sun is an ellipse.
2. The Sun's center is always at one of the orbital ellipses' foci.
3. The planet's orbit is elongated, which means that the planet's distance from the Sun changes as it travels around its orbit.
4. Perigee is the time in a satellite's orbit when it is closest to the planet Earth.
5. Apogee is the period when the satellite is the farthest away from the Earth.
6. All of the planets' orbits are elongated, but the eccentricities are so slight that they appear circular, except for Pluto and Mercury, which have more elongated routes that appear more eccentric.
7. So, this option is correct.

Explanation for incorrect options:

Option (a) Circular path

1. Kepler was eventually obliged to admit that the planets' orbits are not circles, but rather ellipses, which are elongated or flattened circles.
2. Hence, this option is also wrong.

Option (b) Rectangular path

1. This option is incorrect.
2. According to Kepler's first law, the planets revolve around the sun in an elliptical pathway.

All the planets move around the sun in an Elongated path.