For a planet moving around the sun in elliptical orbit, which of the following quantities remain constant ? (a) The total energy of the sun plus planet system (b) The angular momentum of the planet about the sun (c) The force of attraction between the two (d) The linear momentum of the planet

For a planet moving around the sun in elliptical orbit, which of the f

1.	For a planet moving around the sun in elliptical orbit, which of the following quantities remain constant ? (a) The total energy of the sun plus planet system (b) The angular momentum of the planet about the sun (c) The force of attraction between the two (d) The linear momentum of the planet
Answer» only a & B are TRUE only C & d are true only a, b & c are true all are true ANSWER :A