Home
Class 12
PHYSICS
A planet radiates heat at a rate proport...

A planet radiates heat at a rate proportional to the fourth power of its surface temperature T. If such a steady temperature of the planet is due to an exactly equal amount of heat received from the sun then which of the following statement is true?

A

The planet's surface temperature varies inversely as the distance of the sun

B

The planet's surface temperature varies directly as the square of its distance from the sun

C

The planet's surface temperature varies inversely as the square root of its distance from the sun

D

The planet's surface temperature is proportional to the fourth power of distance from the sun

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • NTA NEET SET 30

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

  • NTA NEET SET 32

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

Assume that a planet radiates heat at a rate proportional to the fourth power of its surface temperature T and that the temperature of the planet is such that this loss is exactly compensated by the heat gained from the sun. Show that other things remaining the same, a planet's surface temperature will vary inversely as the square root of its distance from the sun.

The power P is received by a surface at temperature T_(0)K from a small sphere at temperature

At the surface of a certain planet acceleration due to gravity is one - quarter of that on earth If a brass ball is transported to this planet , then which one of the following statements is not correct ? .

A planet having surface temperature T, K has a solar constant S. An angle theta is subtended by the sun at the planet:

If heat Q is added reversibly to a system at temperature T and heat Q' is taken away from it reversibly at temperature T' , then which one of the following is correct

Assertion : Bodies radiate heat at all temperatures. Reason : Rate of radiation of heat is proportional to the fourth power of absolute temperature.

Assertion : The radiation from the sun’s surface varies as the fourth power of its absolute temperature. Reason : The sun is not a black body.

A metal cube of length 4 cm radiates heat at the rate of 10 J/s. Find its emissive power at given temperature.

NTA MOCK TESTS-NTA NEET SET 31-PHYSICS
  1. If the first one - third of q journey is travelled at 20 km h^(-1) , ...

    Text Solution

    |

  2. A body is orbiting very close to the earth surface kinetic energy K.E....

    Text Solution

    |

  3. A planet radiates heat at a rate proportional to the fourth power of i...

    Text Solution

    |

  4. 2kg ice at -20"^(@)C is mixed with 5kg water at 20"^(@)C. Then final a...

    Text Solution

    |

  5. In a flexible balloon 2, moles of SO2 having an initial volume of 1 kL...

    Text Solution

    |

  6. A horizontal overheadpowerline is at height of 4 m from the ground and...

    Text Solution

    |

  7. A straight wire of diameter 0.5 mm carrying a current of 1 A is replac...

    Text Solution

    |

  8. A charge q moves region in a electric field E and the magnetic field B...

    Text Solution

    |

  9. Two blocks A and B are placed one over the other on a smooth horizonta...

    Text Solution

    |

  10. A sample of .^(210)Po which is alpha -emitter with T(1/2)=138 days is...

    Text Solution

    |

  11. During a nuclear fusion reaction,

    Text Solution

    |

  12. A photon and an electron have equal energy E . lambda("photon")//lambd...

    Text Solution

    |

  13. The average depth of indian Ocean is about 3000 m. The fractional comp...

    Text Solution

    |

  14. A graph is plotted between angle of deviation (delta) and angle of inc...

    Text Solution

    |

  15. Magnification of a compound microscope is 30. Focal length of eye- pie...

    Text Solution

    |

  16. A particle with linear momentum of magnitude P is subjected to a force...

    Text Solution

    |

  17. The ratio of the time taken by a solid sphere and that taken by a disc...

    Text Solution

    |

  18. The output Y of the combination of logic gates shown is equal to

    Text Solution

    |

  19. The forward biased diode connection among the following is

    Text Solution

    |

  20. Which one of the following would raise the temperature of 20 g of wate...

    Text Solution

    |