Astrophysics Internals II(Stars)

The first stage of life cycle of a star is ball of gas and

• light

• heat

• gas

• dust

Dust and gases are pulled together in a sphere by help of

• repulsion

• attraction

• gravity

• pull

The star gets denser and hotter ultimately changing in to helium by process of

• conduction

• convection

• nuclear fusion

• nuclear fission

The apparent shift on viewing from different locations giving change in positioning of object is called

• absolute magnitude

• apparent magnitude

• light year

• parallax

A nebula consists primarily of which element?

• Helium

• Nitrogen

• Oxygen

• Hydrogen

Which sequence below is correct?

• Red Giant, Nebula, Main Sequence, Protostar

• Nebula, Protostar, Main Sequence, Red Giant

• Nebula, Main Sequence, Protostar, Red Giant

• Red Giant, Nebula, Protostar, Main Sequence

At which stage does a star swell up many times larger than its normal size?

• Protostar

• Nebula

• Main Sequence

• Red Giant

The eventual type of star death depends on

• Color

• Shape

• Mass

• Composition

Less massive stars turn into ___ when they die

• White Dwarfs

• Black Hole

• Neutron Star

• Either a black hole or a neutron star

More massive stars turn into ___ when they die

• White Dwarf

• Black Hole

• Neutron Star

• Either a black hole or a neutron star