Home
Class 12
PHYSICS
Two stars A and B radiates maximum energ...

Two stars A and B radiates maximum energy at 3600 Å and 4200 Å, respectively. Then the ratio of their temperature is

A

`6:7`

B

`7:6`

C

`sqrt(6):sqrt(7)`

D

`sqrt(7):sqrt(6)`

Text Solution

Verified by Experts

The correct Answer is:
B
`lamda_(1)T_(1)=lamda_(2)T_(2)" "therefore(T_(1))/(T_(2))=(lamda_(2))/(lamda_(1))`
`(T_(1))/(T_(2))=(lamda_(2))/(lamda_(1))=(4200)/(3600)=(7)/(6)`
Promotional Banner

Topper's Solved these Questions

  • KINETIC THEORY OF GASES & RADIATION

    NIKITA PUBLICATION|Exercise MCQs (Kirchhoffs law of heat radiation)|19 Videos

  • 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 (Perfectly black body, emmissive power and emmissivity)|38 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

Two stars A and B radiate maximum energy 5200Å and 6500Å respectively. Then the ratio of absolute temperatures of A and B is

Two stars A and B radiate maximum energy at wave lengths 4000Å and 5000Å respectively. The ratio of their temperature will be-

Two stars emit maximum radiation at wavelength 3600 Å and 4800 Å respectively. The ratio of their temperatures is

Two stars radiate maximum energy at wavelengths 3.6xx10^(-5)cm and 4.8xx10^(-5)cm respectively. The ratio of their temperature is

The maximum radiations from two bodies correspond to 560 nm and 420 nm respectively. The ratio of their temperature is:

Two bodies A and B have emissivities 0.5 and 0.8 respectively. At some temperature the two bodies have maximum spectral emissive powers at wavelength 8000 Å and 4000 Å respectively. The ratio of their emissive powers at these temperatures is :

Two stars radiate maximum energy at wavelength 3.6 xx 10^(-7)m and 4.8 xx 10^(-7) m respectively. What is the ratio of their temperature?

The radiation emitted by a star A is 100 times that of the sun. If the surface temperatures of the sun and the star are 6000 K and 2000 K respectively, then the ratio of the radii of the star and the sun is

NIKITA PUBLICATION-KINETIC THEORY OF GASES & RADIATION -MCQs (Spectrum of Black Body Radiations in Terms Wavelength)
  1. The cause of Fraunhoffer lines is

    Text Solution

    |

  2. Wien's distribution law fails at

    Text Solution

    |

  3. Which of the following can be used to estimate the temperature of a st...

    Text Solution

    |

  4. If the wavelength corresponding to maximum energy radiated from the mo...

    Text Solution

    |

  5. A spherical body of 5 cm radius is maintained at a temperature of 327^...

    Text Solution

    |

  6. Two stars A and B radiates maximum energy at 3600 Å and 4200 Å, respec...

    Text Solution

    |

  7. The maximum radiant energyy emitted at 1000 K is for a wavelength of 2...

    Text Solution

    |

  8. The surface temperature of the sun is about 6000 K. the sun's radiatio...

    Text Solution

    |

  9. If wavelengths of maximum intensity of radiations emitted by the sun a...

    Text Solution

    |

  10. The wavelength of maximum emitted energy of a body at 700 K is 4.08 mu...

    Text Solution

    |

  11. A black body at 200 K is found to exit maximum energy at a wavelength ...

    Text Solution

    |

  12. Two stars emit maximum radiation at wavelength 3600 Å and 4800 Å respe...

    Text Solution

    |

  13. A black body emits radiations of maximum intensity at a wavelength of ...

    Text Solution

    |

  14. Black body at a temperature of 1640K has the wavelength corresponding ...

    Text Solution

    |

  15. Solar radiation emitted by sun resembles that emitted by a body at a t...

    Text Solution

    |

  16. What will be the ratio of temperatures of sun and moon if the waveleng...

    Text Solution

    |

  17. The absolute temperatures of two black bodies are 2000 K and 3000 K re...

    Text Solution

    |

  18. A particular star (assuming it as a black body) has a surface temperat...

    Text Solution

    |

  19. The maximum energy in thermal radiation from a source occurs at the wa...

    Text Solution

    |

  20. The intensity of radiation emitted by the sun has its maximum value at...

    Text Solution

    |