Kepler’s third law of planetary motion states that the square of a planet's orbital period is proportional to the cube of the average distance between the planet and the sun.

True.

Explanation:

The laws created by Keepler in the field of astronomy try to explain how the planetary movement of the solar system occurs to the sun's stalk. It also explains how the movement of satellites around the planets occurs. In other words, these laws wish to explain the orbits of planets and satellites.

There are three laws in all, in the third of them, the so-called Law of Periods, Kepler states that the square of the period of revolution of the planets (also known as the orbital period) is directly proportional to the cube of the average rays of the orbits of these planets. This is to say that the orbital period of a planet is proportional to the cube of the average distance between the planet and the sun.

liquid crystals are matters in a state which have properties between those of conventional liquids and those of solid crystals[1]. liquid crystal is partially ordered and anisotropic. in terms of molecular order, liquid crystal molecules have one-dimensional or two-dimensional long - range order.

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