Pluto

Q.

Why Pluto is not a planet? What rules does it not follow?

Q.

It takes the Sun about $2.3\times {10}^8$ years to orbit the center of the Milky Way. It takes Pluto about $2.5\times {10}^2$ years to orbit the Sun. How many times does Pluto orbit the Sun while the Sun completes one orbit around the Milky Way?

Q. Which organisation was responsible for excluding Pluto as a planet from the solar system?

1. IAU
2. IUPAC
3. NASA
4. AU

Q.

Which organisation was responsible for excluding Pluto from the Sun's planet list?

1. IAU

2. NASA

3. USA

4. IUPAC

Q.

Why have Pluto and the objects like it been deleted from the list of planets? What is the new name given to these objects? State their name in the order of increasing from the distance.

Q.

Which planet has been categorized as dwarf planet.

Q.

Which organisation was responsible for excluding Pluto from the Sun's planet list?

1. IAU

2. IUPAC

3. NASA

4. USA

Q.

Pluto is called as a dwarf planet because it is:

Q. If Pluto orbits the Sun in an elliptical orbit. Choose the correct option which is true of Pluto's orbit?

1. The gravitational force acting between Pluto and the Sun must point in the direction of Pluto's velocity
2. The gravitational force between Pluto and the Sun is greater when Pluto is farthest from the Sun
3. The gravitational force between the Sun and Pluto is constant at all points in Pluto's orbit
4. The speed of Pluto is greatest when Pluto is farthest from the Sun
5. The speed of Pluto is greatest when Pluto is closest to the Sun

Q.

Saturn has _____ rings

1. 9
2. 7
3. 5

4. 1

Q. Yama is to Pluto, as Shani is to

1. Saturn
2. Mars
3. Jupiter
4. Venus