Home
Class 12
PHYSICS
When p calories of heat is given to a bo...

When p calories of heat is given to a body, it absorbs q calories, then the absorbtion power of body will be :-

A

p/q

B

q/p

C

`p^(2)//q^(2)`

D

`q^(2)//p^(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
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

If 'p' calorie of heat energy is incident on a body and absorbs 'q' calories its coefficient of absorption is .

When heat energy is incident on a body, then

1000 calories of radiant heat is incident on a body. If the body absorbs 400 calories of heat, find the coefficient of emission of the body.

The SI unit of heat is 'calorie'.

When 500 calories heat is given to the gas X in an isobaric process, its work done comes out as 142.8 calories . The gas X is

When 60 calories of heat are supplied to 15 g of water, the rise in temperature is

When heat energy flows into a body it warms the body.

For a thermodynamic process delta Q=- 50 calorie and W =-20 calorie. If the nitial internal energy is -30 calorie then final internal energy will be-

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

    |