Home
Class 12
PHYSICS
In Newton's law of cooling, if the rates...

In Newton's law of cooling, if the rates of emission of radiation by a calorimeter from 90 DC to 85 DC, 85 °C to 80 °C-and from 80 °C to 75 °C are `E_1,E_2` and `E_3` respectively, then

A

`E_1=E_2=E_3`

B

`E_1gtE_2gtE_3`

C

`E_1ltE_2gtE_3`

D

`E_1ltE_2ltE_3`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • KINETIC THEORY OF GASES AND RADIATION

    TARGET PUBLICATION|Exercise critical thinking|104 Videos
  • 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

Similar Questions

Explore conceptually related problems

The rate of emission of radiation of a black body at 273^(@)C is E , then the rate of emission of raidiation of this body at 0^(@)C will be

A hot body obeying Newton's law of cooling is cooling down from its peak value 80^@C to an ambient temperature of 30^@C . It takes 5 minutes in cooling down from 80^@C to 40^@C . How much time will it take to cool down from 62^@C to 32^@C ? (Given In 2 = 0.693, In 5 = 1.609)

A hot body, obeying Newton's law of cooling is cooling down from its peak value 80^(@)C to an ambient temperature of 30^(@)C . It takes 5 minutes in cooling down from 80^(@)C to 40^(@)C . How much time will it take to cool down from 62^(@)C to 32^(@)C ? (Given In 2 = 0.693, In 5 = 1.609)

The rate of radiation from a black body at 1^(@)C is E The rate of radiation from this black body at 273^(@)C is .

If the rates of loss of energy by unit area of an iron ball are E_(1) , E_(2) and E_(3) when it cools from 75^(@) to 70^(@)C , 70^(@)C to 65^(@) C and 65^(@) C to 60^(@)C respectively then -

If a body takes 6 minutes to cool from 80°C to 70°C, how long will it take to cool from 60°C to 50°C, if the surrounding temperature is 25°C?

TARGET PUBLICATION-KINETIC THEORY OF GASES AND RADIATION -Evaluation test
  1. In Newton's law of cooling, if the rates of emission of radiation by a...

    Text Solution

    |

  2. The power radiated by a black body is P, and it radiates maximum energ...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  8. For an ideal gas,

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  14. Real gases obey ideal gas laws more closely at

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |