Why do scientists use magnetic field measurements and observations of radio emission to determine the rotation rates of the interiors of the outer planets such as Uranus?
A)The radio emission comes primarily from the moons, and their motion is governed to some extent by the magnetic field generated in the planet's interior.
B)The magnetic field originates deep inside the planet and radio emission originates in the magnetosphere, the structure and motion of which is linked to this internal magnetic field.
C)Radio energy is produced when cosmic rays pass through magnetic fields in the deep interiors of the planets and variations in this output reflect internal motions.
D)Magnetic field changes produce radio emission in the deep interiors of the planets.

Question

Quizplus · Accepted Answer

The magnetic field originates deep inside the planet and radio emission originates in the magnetosphere, the structure and motion of which is linked to this internal magnetic field. By measuring the magnetic field and radio emissions, scientists can determine the rotation rates of the interiors of outer planets such as Uranus.

Why Do Scientists Use Magnetic Field Measurements and Observations of Radio