In 1610 , Galileo found four moons of planet jupiter. He observe the motion of one moon callisto from earth and his data in graph as shown below suggests that its motion is simple harmonic. Now, choose the correct statement.

Question

In 1610 , Galileo found four moons of planet jupiter. He observe the motion of one moon callisto from earth and his data in graph as shown below suggests that its motion is simple harmonic. Now, choose the correct statement. (A) The motion of moon callisto is not simple harmonic in real. (B) The motion of moon callisto is actually uniform circular motion. (C) Galileo observed projections of uniform circular motion in a line of plane of motion. (D) All of the above

Tardigrade Admin · Accepted Answer

Actually, the motion of moon callisto is uniform circular motion. However, what Galileo observed the projection of that uniform circular motion in a line of plane of motion. Hence, when it was viewed from earth, it looked like a to and fro motion, i.e. a simple harmonic motion. Thus, the statements given in options (a), (b) and (c) are all correct.

Q. In 1610 , Galileo found four moons of planet jupiter. He observe the motion of one moon callisto from earth and his data in graph as shown below suggests that its motion is simple harmonic. Now, choose the correct statement.

The motion of moon callisto is not simple harmonic in real.

The motion of moon callisto is actually uniform circular motion.

Galileo observed projections of uniform circular motion in a line of plane of motion.

All of the above