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The Sun is a hot plasma (ionized matter) with its inner core at a temperature exceeding 10^7 K, and its outer surface at a temperature of about 6000 K. At

these high temperatures, no substance remains in a solid or liquid phase. In what range do you expect the mass density of the Sun to be, in the range of densities of solids and liquids or gases ? Check if your guess is correct from the following data : mass of the Sun = 2.0 ×10^30 kg, radius of the Sun = 7.0 × 10^8 m.
NCERT Solutions for Class 11 Physics Part 1 Chapter 2 Exercise 23


Here mass of sun , M=2 ×10 ^30 kg 
 radius of sun = 7 × 10^8 m
 volume = 4/3 π r³ = 1.437 ×  10^27 m³

now density = p=m/v= 1391.8 kg /m³
   the density of sun is in range of the densities of the solids , liquids and not gases .

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