Home
Class 12
PHYSICS
Three identical spheres of different mat...

Three identical spheres of different materials iron gold and silver are at the same temperature The one that radiates more energy is .

A

gold

B

silver

C

iron

D

all radiates equally

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • KINETIC THEORY OF GASES & RADIATION

    NIKITA PUBLICATION|Exercise MCQs (Stefans Law of Black Body Radiation)|52 Videos
  • KINETIC THEORY OF GASES & RADIATION

    NIKITA PUBLICATION|Exercise MCQs (Newtons Law of Cooling)|40 Videos
  • KINETIC THEORY OF GASES & RADIATION

    NIKITA PUBLICATION|Exercise MCQs (Spectrum of Black Body Radiations in Terms Wavelength)|22 Videos
  • INTERFERENCE AND DIFFRACTION

    NIKITA PUBLICATION|Exercise MULTPLE CHOICE QUESTIONS|333 Videos
  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    NIKITA PUBLICATION|Exercise MCQs (Sensitivity and accuracy of M.C.G.)|1 Videos

Similar Questions

Explore conceptually related problems

Three identical shperes of different meterials iron gold and silver are at the same temperature The one that radiates more energy is .

Two different gases at the same temperature have the same average kinetic energy.

A solid sphere and a hollow sphere of the same material and size are heated to the same temperature and allowed to cool in the same surroundings. If the temperature difference between the surroundings and each sphere is T, then :

A solid sphere and a hollow sphere of the same material and of equal radii are heated to the same temperature

Two spheres made of same material have radii in the ratio 1: 2 Both are at same temperature. Ratio of heat radiation energy emitted per second by them is

A solid sphere and a hollow sphere of the same material and of equal radii are heated to the same temperature.

A solide sphere and a hollow sphere of the same material and of equal radii are heated to the same temperature (i) Both will emit equal amount of radiation per unit time in the beginning (ii) Both will absorb equal amount of radiation from the surrounding in the beginning (iii) The initial rate of cooling dT//dt will be same for the two spheres (iv) The two spheres will have equal temperatures at any instant

Two rods, one of iron and the other of aluminium, are heated to the same temperature. Then,

Two identical wires of different materials are stretched by the same tesion. Velocity of transverse wave in both the string is

NIKITA PUBLICATION-KINETIC THEORY OF GASES & RADIATION -MCQs (Kirchhoffs law of heat radiation)
  1. The essence of Kirchhoff's law is that a good absorber must be a

    Text Solution

    |

  2. The black body have

    Text Solution

    |

  3. A piece of charcoal and a piece of shining steel of the same surface a...

    Text Solution

    |

  4. On inverstigation of light from three different stars A,B and C it was...

    Text Solution

    |

  5. Three identical spheres of different materials iron gold and silver ar...

    Text Solution

    |

  6. Which of the following is a good emitter

    Text Solution

    |

  7. Gren house effect is

    Text Solution

    |

  8. A spherical earthen vessel with a hole is heated in a furnace till it ...

    Text Solution

    |

  9. Who explained the Fraunhoffer line in the spectrum of solar radiations...

    Text Solution

    |

  10. A good absorber of heat is a good radiator of heat, this statement is

    Text Solution

    |

  11. Relation between emissivity e and absorptive power a is (for black bod...

    Text Solution

    |

  12. Which of the following statements is wrong?

    Text Solution

    |

  13. Half part of ice block is covered with black cloth and rest half is co...

    Text Solution

    |

  14. If between wavelength lambda andlambda + dlambda, e(lambda) and a(lamb...

    Text Solution

    |

  15. When p calories of heat is given to a body, it absorbs q calories, t...

    Text Solution

    |

  16. Distribution of energy in the spectrum of a black body can be correctl...

    Text Solution

    |

  17. At a certain temperature for given wavelength, the ratio of emissive p...

    Text Solution

    |

  18. The Kirchhoff's law leads to the conclusion that the good radiators of...

    Text Solution

    |

  19. If E is emissive power and 'a' is the coefficient of absorption of a b...

    Text Solution

    |