Home
Class 11
PHYSICS
The sun is a hot plasma (ionised matter)...

The sun is a hot plasma (ionised matter) with its linner core at a temperature excedding `10^7` K, and its outer surface at a temperature of about 6000K. At such high temps, 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, liquieds or gases ? Check if your guess is correct from the following data : mass of sun `= 2.0xx10^(30)kg` , radius of the sun ` =7.0xx10^8m`

Promotional Banner

Topper's Solved these Questions

  • PHYSICAL WORLD AND MEASUREMENTS

    SL ARORA|Exercise problem|10 Videos
  • PHYSICAL WORLD AND MEASUREMENTS

    SL ARORA|Exercise problem for self practice|64 Videos
  • Physical world

    SL ARORA|Exercise Exercise|49 Videos
  • PROJECTILE MOTION

    SL ARORA|Exercise Problem For Self Practice|50 Videos

Similar Questions

Explore conceptually related problems

Surface temperature of Sun is

Given that mass of sun is 2 xx10^(30) kg and radius of sun is 7 xx10^(8) m . In what range do you expect the mass density of the sum to be ? Is it in the range of density of solid or liquid or gas ? Explain.

The variation of density of a solid with temperature is give by the formula

The luminousity of a star is 10000 times that of the sun. if the surface temperature of the sun is 6000 K, then the surface temperature of the star is

In sun and other stars, where temperature is about 10^(7) K fusion, takes place dominatly by:

The luminousity of a star is 10,000 times that of the sun and its surface temperature is 3000K . Assuming the surface of temperature of the sun to be 6000K , compare the radius of the star with that of the sun.

The sun is constantly radiating energy and yet its surface temperature is nearly constant at 6000^@C . The constancy of solar temperature is due to

SL ARORA-PHYSICAL WORLD AND MEASUREMENTS-Based on Combination
  1. The sun is a hot plasma (ionised matter) with its linner core at a tem...

    Text Solution

    |

  2. The length of two rods are recorded as l(1) = (25.2 pm 0.1) cm and l(2...

    Text Solution

    |

  3. Two resistance (200 pm 4) Omega and (150 pm 3) Omega are connected in ...

    Text Solution

    |

  4. The initial and final temperature of water were recorded as (56.3 pm 0...

    Text Solution

    |

  5. If l(1) = (10.0 pm 0.1) cm and l(2) = (9.0 pm 0.1) cm , find the their...

    Text Solution

    |

  6. A capacitor C = (2.0 +- 0.1)muF is charged to a voltage V = (20 +- 0.5...

    Text Solution

    |

  7. The resistance R of a conductor is defind as the ratio of the potentia...

    Text Solution

    |

  8. The relative density of a material is found by weighing the body first...

    Text Solution

    |

  9. The length and breadth of a rectangular block are 25.2 cm and 16.8 cm,...

    Text Solution

    |

  10. While measuring the volume of a sphere , an error of 1.2 % is commited...

    Text Solution

    |

  11. The voltage across a lamp is (6.0 +- 0.1) V and the current passing th...

    Text Solution

    |

  12. The radius of a sphere is measured to be (2.1+-0.5) cm. Calculate its ...

    Text Solution

    |

  13. The radius of a sphere is (5.3 +- 0.1)cm The perecentage error in its ...

    Text Solution

    |

  14. The measure of the diameter of a cylinder is (1.60 pm 0.01) cm and it...

    Text Solution

    |

  15. The measured mass and volume of a body are 2.00 g and 5.0 cm^(3) respe...

    Text Solution

    |

  16. Two resistance R(1) and R(2) are connected in (i) series and (ii) para...

    Text Solution

    |

  17. A body travels uniformly a distance of ( 13.8 +- 0.2) m in a time (4.0...

    Text Solution

    |

  18. The centripetal force acting on a body of mass m moving with speed v a...

    Text Solution

    |

  19. The period of oscillation of a simple pendulum is T = 2 pi sqrt((L)/(g...

    Text Solution

    |

  20. Calculate the percentage error in specific resistance , rho = pi r^(2)...

    Text Solution

    |

  21. The Young's modulus Y is determined by stretching a wire by using the...

    Text Solution

    |