Home
Class 12
PHYSICS
Two stars X and Y emit blue and yellow l...

Two stars X and Y emit blue and yellow lights respectively. What is the relation between their temperatures (`T_(x) and T_(y)`) ?

A

`T_(x)gtT_(y)`

B

`T_(x)ltT_(y)`

C

`T_(x)=T_(y)`

D

`T_(x)=1/2T_(y)`

Text Solution

Verified by Experts

The correct Answer is:
A

X - Blue Y - Yellow
`becauselamda_(Y)gtlamda_(B)" "thereforeT_(Y)ltT_(X)`
Promotional Banner

Topper's Solved these Questions

  • KINETIC THEORY OF GASES ,THERMODYNAMICS AND RADIATION

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP - 9|30 Videos
  • INTERFERENCE AND DIFFRACTION

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|20 Videos
  • MAGNETIC EFFECTS OF ELECTRIC CURRENT

    MARVEL PUBLICATION|Exercise MCQ|195 Videos

Similar Questions

Explore conceptually related problems

Two absolute scales X and Y assigned numerical values 200 and 450 to the triple of water. What is the relation between T_(X) and T_(Y) ?

What is the relation between Fahrenheit temperature (t_(f)) and Celsius temperature (t_(c)) is?

If the exponents of 5 and 7 in 100C_(50) ,are respectively x and y then relation between x and y

Relation between (X) and (Y) is :

The sun emits light with a maximum wavelength of 510 nm while another star X emits light of maximum wavelength of 350 nm. What is the ratio of the surface temperatures of the sun and the star ?

The fundamental interval, that is the number of divisions between LFP and UFP on the two scales X and Y are 50 and 150 respectively. The ice point on both the scales is at 0^(@) . If the temperature on the X scaleis 15^(@) , then what is the temperature on the Y-scale?

A curve is represented parametrically by the equations x=e^(t)cos t and y=e^(t)sin t where t is a parameter.Then The relation between the the parameter.t' and the angle a between the tangent to the given curve andthe x-axis is given by,t' equals

A binary star system consists of two stars of masses M_(1) and M_(2) revolving in circular orbits of radii R_(1) and R_(2) respectively. If their respective time periods are T_(1) and T_(2) , then

The light emitted by the sun has maximum wavelength of 570 nm. The light emitted by another star has the maximum wavelength of 380 nm. What is the ratio of the surface temperatures of the star and the sun ?

The spectra of radiation emitted by two distant stars are shown below. The ratio of the surface temperature of star A to that of star B, T_(A):T_(B), is approximately-

MARVEL PUBLICATION-KINETIC THEORY OF GASES ,THERMODYNAMICS AND RADIATION-TEST YOUR GRASP - 9
  1. Two stars X and Y emit blue and yellow lights respectively. What is th...

    Text Solution

    |

  2. The velocities of 4 molecules are 4m/s, 5m/s, 6m/s and 2m/s respective...

    Text Solution

    |

  3. Oxygen and hydrogen gas are at same temperature and pressure. And the ...

    Text Solution

    |

  4. The mean free path of nitrogen molecules at 27^(@)C is 3xx10^(-7)m//s....

    Text Solution

    |

  5. The equation of state for 15 gram of oxygen at pressure P, volume V an...

    Text Solution

    |

  6. The rms velocity of the molecules of a gas at temperature T is 1200 m/...

    Text Solution

    |

  7. If atmospheric pressure P=1xx10^(5)N//m^(2)andR=8J//"mole"//""^(@)K, t...

    Text Solution

    |

  8. At what temperature is the K.E. Of a gas molecules half that of its va...

    Text Solution

    |

  9. Each molecule of a gas has F degrees of freedom . The ratio (C(p))/(C(...

    Text Solution

    |

  10. Argon gas is heated at constant volume through 1^(@)C. The heat suppli...

    Text Solution

    |

  11. C(v) denotes the molar specific heat of a gas at constant volume and g...

    Text Solution

    |

  12. One mole of a monoatomic ideal gas is mixed with one mole of a diato...

    Text Solution

    |

  13. Which one of the following is not true about the following thermodynam...

    Text Solution

    |

  14. During an adiabatic process, the pressure of gas is found to be propor...

    Text Solution

    |

  15. The difference between the principal specific heats of a gas is 300J/k...

    Text Solution

    |

  16. When the temperature of 4 moles of a gas was increased from 80^(@)C to...

    Text Solution

    |

  17. 100g of water is heated from 30^@C to 50^@C. Ignoring the slight expan...

    Text Solution

    |

  18. The temperature of sink of Carnot engine is 27^(@)C. Efficiency of eng...

    Text Solution

    |

  19. In an ideal refrigerator, heat from inside at 280 K is transferred to ...

    Text Solution

    |

  20. Which one of the following statements is true in the case of radiation...

    Text Solution

    |

  21. A perfectly black sphere of diameter 0.2 m is in thermal equilibrium w...

    Text Solution

    |