The unit used to measure the distance between planets is
light year
Angstrom unit
Astronomical unit
Fermi
Sun has nine planets . Which is the largest among all of them ?
Neptune
Jupiter
Earth
Saturn
The information in which alternative represents the values of a and b?
Which force is responsible for keeping the planets and the satellites moving in their respective orbits?
Electric force
Magnetic force
Frictional force
Gravitational force
Stars are formed in
Ceres
Nebula
Andromeda
None of these
The central part at which numerous stars are concentrated is called
Supernova
Perihelion
Galactic bulge
Apastron
The outer surface of the Sun visible to us is
chromosphere
photosphere
corona
convection zone
According to Big Bang theory, all the celestial objects existed at a certain point which is
expanding into the present day universe
contracting into the present day universe
located in the middle of the Milky Way
located in the middle of the Solar System
The small celestial objects, known as meteors, burn out as they enter the Earth’s atmosphere.The meteors heat up on entering the earth’s atmosphere because of
rotation of the Earth
magnetic field of the Earth
friction between the meteors and Earth’s atmosphere
gravitational attraction between the meteors and the Earth
According to the Big Bang theory, the universe developed from an extremely hot and dense state by an explosion. The Big Bang theory is supported by the
presence of big luminous stars
evidence of the expanding universe
presence of rotating heavenly bodies
scattered positions of the heavenly bodies
