Consider a white dwarf and a neutron star
each of one solar mass. The radius of the white dwarf is
sames that of the earth (approx. 6400 km) and the radius of the
neutron star is 10 km. Determine the densities of the two
types of the stars. Take mass of the sun 2.0x10^30 kg
Answers
Answer:
The density of the white dwarf and the density of the neutron star are 3218910688kg/m³ and 8.438181e17kg/m³ respectively.
Step-by-step explanation:
1 solar mass = 1.989×10^30 kg
= 1.989e30 kg
Given radius of white dwarf = 6400km
= 6400000m
Given radius of neutron star = 10km
= 10000m
Volume of WD = 3/4 × 22/7 × 6400000³
= 6.179109e20 m³
Volume of NS = 3/4 × 22/7 × 10000³
= 2.357143e12
Density of white dwarf = Mass / Volume
= 1.989e30/6.179109e20
= 3218910688 kg / m³
Density of neutron star = Mass / Volume
= 1.989e30/2.357143e12
= 8.438181e17 kg/m³
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