Home
Class 12
PHYSICS
The power radiated by a black body is P,...

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

`3/4`

B

`4/3`

C

`(256)/(81)`

D

`(81)/(256)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • KINETIC THEORY OF GASES AND RADIATION

    TARGET PUBLICATION|Exercise Competitive thinking|187 Videos
  • INTERFERENCE AND DIFFRACTION

    TARGET PUBLICATION|Exercise EVALUATION TEST|20 Videos
  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    TARGET PUBLICATION|Exercise EVALUATION TEST|19 Videos
TARGET PUBLICATION-KINETIC THEORY OF GASES AND RADIATION -Evaluation test
  1. The power radiated by a black body is P, and it radiates maximum energ...

    Text Solution

    |

  2. One mole of an ideal gas is kept enclosed under a light piston (area =...

    Text Solution

    |

  3. A metallic pipe with nut and bolt assembly is shown in the figure. as ...

    Text Solution

    |

  4. Variation of heat of reaction with temperature is known as

    Text Solution

    |

  5. A black pattern on a porcelain bowl appears brighter than the rest of ...

    Text Solution

    |

  6. A boiler heats water flowing at the rate of 2.0 litres per minute from...

    Text Solution

    |

  7. For an ideal gas,

    Text Solution

    |

  8. A reversible engine converts one third input into work. When the tempe...

    Text Solution

    |

  9. Two bodies A and B having same surface areas have emmissivities of 0.0...

    Text Solution

    |

  10. Two different adiabatic curves for the same gas intersect two isotherm...

    Text Solution

    |

  11. A given quantity of a ideal gas is at pressure P and absolute tempera...

    Text Solution

    |

  12. A given quantity of a ideal gas is at pressure P and absolute tempera...

    Text Solution

    |

  13. Real gases obey ideal gas laws more closely at

    Text Solution

    |

  14. A flask is filled with 10 g of a gas at 20 °C and then heated to 50 °C...

    Text Solution

    |

  15. One mole of an ideal gas at temperature T was cooled isochorically til...

    Text Solution

    |

  16. Assertion: Equal volumes of monatomic and polyatomic gases are adiabat...

    Text Solution

    |

  17. A certain mass of an ideal gas undergoes a reversible isothermal compr...

    Text Solution

    |

  18. An ideal Black-body at room temperature is thrown into a furnace. It i...

    Text Solution

    |