Home
Class 12
PHYSICS
A hot body will radiate maximum energy i...

A hot body will radiate maximum energy if its surface is

A

White and polished

B

White and rough

C

Black and polished

D

Black and rough

Text Solution

Verified by Experts

The correct Answer is:
D
Rough surface have better absorption and so do the emission.
Promotional Banner

Topper's Solved these Questions

  • PROPERTIES OF MATTER

    VMC MODULES ENGLISH|Exercise Level -2|50 Videos

  • PROPERTIES OF MATTER

    VMC MODULES ENGLISH|Exercise JEE Main (Archive) Level - 1|48 Videos

  • PROPERTIES OF MATTER

    VMC MODULES ENGLISH|Exercise JEE Advanced (Archive) Level - 2 (MATRIX MATCH TYPE)|1 Videos

  • MOVING CHARGES & MAGNETISM

    VMC MODULES ENGLISH|Exercise IN-CHAPTER EXERCISE-K|10 Videos

  • QUIZ

    VMC MODULES ENGLISH|Exercise PHYSICS|30 Videos

Similar Questions

Explore conceptually related problems

Calculate the wavelength at which a hot body radiates maximum energy if its surface temperature is 3200^(@) C. Wien's constant 0.00289 mK.

The surface temperature of a hot body is 1227^(@) C. Find the wavelength at which it radiates maximum energy. Given Wien's constant = 0.2892 cm.K.

The rate of radiation of energy from a hot object is maximum, if its surface is

The power radiated by a black body is P, and it radiates maximum energy around the wavelength lambda_(0) . If the temperature of the black body is now changed so that it radiates maximum energy around a wavelength 3lambda_(0)//4 , the power radiated by it will increase by a factor of

The power radiated by a black body is P, and it radiates maximum energy around the wavelength lambda_(0) . If the temperature of the black body is now changed so that it radiates maximum energy around a wavelength 3lambda_(0)//4 , the power radiated by it will increase by a factor of

A body emits maximum energy at 4253 Å and the same body at some other temperature emits maximum energy at 2342 Å . Find the ratio of the maximum energy radiated by the body in a short wavelength range.

A black body emits radiations of maximum intensity at a wavelength of Å 5000 , when the temperature of the body is 1227^(@)C . If the temperature of the body is increased by 1000^(@)C , the maximum intensity of emitted radiation would be observed at

The threshold frequency for a metallic surface corresponds to an energy of 6.2eV and the stopping potential for a radiation incident on this surface is 5 V . The incident radiation lies in

A : The radiation pressure due to light waves is maximum when the surface is a perfect reflector. R : The momentum transfer by the photons to a perfectly reflecting surface is maximum.

A black body emits radiation of maximum intensity at a wavelength of 5000A when the temperature of the body is 1227^(@) C. If the temperature of the body is increased by 1000^(@) C, calculate the wavelength corresponding to the maximum intensity.

VMC MODULES ENGLISH-PROPERTIES OF MATTER-Level -1
  1. The thermal radiation emitted by a body is proportional to T^(n) where...

    Text Solution

    |

  2. The rate of radiation of a black body at 0° C is E . The rate of radia...

    Text Solution

    |

  3. A hot body will radiate maximum energy if its surface is

    Text Solution

    |

  4. Which one of the following is upsilon(m) - T graph for perfectly blac...

    Text Solution

    |

  5. The radiation emitted by a star A is 1000 times that of the sun. If th...

    Text Solution

    |

  6. The power radiated by a black body is P and it radiates maximum energy...

    Text Solution

    |

  7. The temperature of a furnace is 2324^(@)C and the intensity is maximum...

    Text Solution

    |

  8. A blockbody emits radiation at the rate P when its temperature is T. A...

    Text Solution

    |

  9. Certain substance emits only the wavelengths lamda1,lamda2,lamda3 and ...

    Text Solution

    |

  10. Spheres P and Q are uniformaly constructed from the same material whic...

    Text Solution

    |

  11. Four spheres A, B, C and D of different metals but all same radius are...

    Text Solution

    |

  12. A body cools down from 65^(@)C to 60^(@)C in 5 minutes. It will cool d...

    Text Solution

    |

  13. A body cools from 50^(@)C to 40^(@)C in 5 min. The surroundings temper...

    Text Solution

    |

  14. A solid at temperature T(1) is kept in an evacuated chamber at tempera...

    Text Solution

    |

  15. In the figure shown, forces of equal magnitude are applied to the two ...

    Text Solution

    |

  16. When a certain weight is suspended from a long uniform wire, its lengt...

    Text Solution

    |

  17. A wire of length L and radius r is clamped at one end. On stretching t...

    Text Solution

    |

  18. A steel wire is suspended vertically from a rigid support. When loaded...

    Text Solution

    |

  19. With a rise of temperature, the Young’s modulus :

    Text Solution

    |

  20. A thin rod of negligible mass and area of cross section S is suspended...

    Text Solution

    |