Home
Class 12
PHYSICS
The plots of intensity versus wavelength...

The plots of intensity versus wavelength for three black bodies at temperatures `T_(1),T_(2)` and `T_(3)` respectively are shown in Their temperatures are shown in How their temperatures are related ?
.

A

(a)`T_(1) gt T_(2) gt T_(3)`

B

(b)`T_(1) gt T_(3) gt T_(2)`

C

(c)`T_(2) gt T_(3) gt T_(1)`

D

(d)`T_(3) gt T_(2) gt T_(1)`

Text Solution

Verified by Experts

The correct Answer is:
B
`lambda_(1) T_(1) = lambda_(2)T_(2) = lambda_(3)T_(3) = "b so" T_(1) gt T_(3) gt T_(2)`
Promotional Banner

Topper's Solved these Questions

  • GEOMETRICAL OPTICS

    ALLEN |Exercise EXERCISE - 05 (B) (MCQ)|9 Videos

  • GEOMETRICAL OPTICS

    ALLEN |Exercise EXERCISE - 05 (B) (MATCH THE COLUMN)|3 Videos

  • GEOMETRICAL OPTICS

    ALLEN |Exercise EXERCISE - 05 (A)|73 Videos

  • CURRENT ELECTRICITY

    ALLEN |Exercise EX.II|66 Videos

  • GRAVITATION

    ALLEN |Exercise EXERCISE 4|9 Videos

Similar Questions

Explore conceptually related problems

Figure shows the isotherms of fixed mass of an ideal gas at three temperatures T_(A), T_(B) and T_(C) then.

The voltage - current (V-1) graphs for a metallic conductor at two different temperatures T_1 and T_2 are shown below: At which temperature is the resistance higher?

Three bodies A , B and C have equal surface area and thermal emissivities in the ratio e_(A) : e_(B) : e_(C) = 1 : (1)/(2): (1)/(4) . All the three bodies are radiating at same rate. Their wavelengths corresponding to maximum intensity are alpha_(A), alpha_(B) and alpha_(C) respectively and their temperatures are T_(A) , T_(B) and T_(C) on kelvin scale , then select the incorrect statement

Two thermally insulated vessel 1 and 2 are filled with air at temperature (T_1T_2), volume (V_1V_2) and pressure (P_1P_2) respectively. If the valve joining the two vessels is opened, the temperature inside the vessel at equilibrium will be

Two ideal Carnot engines opeate in cascade (all heat given up by one engine is used by the other engine to produce work) between temperatures T_(1) and T_(2) . The temperature of the hot reservoir of the first engine is T_(1) and the temperature of the cold reservoir of the second engine is T_(2) . T is the temperature of the sink of first engine which isi also the source for the second engine. How is T related to T_(1) and T_(2) if both the engines perform equal amount of work?

The wavelength of de-Brogile waves associted with neutrons at room temperature T K is

Figure shows graphs of pressure vs density for an ideal gas at two temperature T_(1) and T_(2) . Which of the following is correct ?

Find the tension T_(2) in the system shown in fig.

On observing light from three different stars P, Q and R, it was found that intensity of violet color is maximum in the spectrum of P, the intensity of green colour is maximum in the spectrum of R and the intensity of red colour is maximum in the spectrum of Q. If T_(P),T_(Q) and T_(R) are the respective absolute temperatures of P,Q and R, then it can be concluded from the above observation that :

Three large discs have same area. They are kept at equidistant in parallel. They can be considered as perfect black bodies and their thermal conductivity is very large. If temperature of first and third discs are 2T C and 3T C respectively then temperature of second disc in thermal steady state is . . . . .

ALLEN -GEOMETRICAL OPTICS-EXERCISE - 05 (B)
  1. A gas mixture consists of 2 moles of oxygen and 4 moles of argon at te...

    Text Solution

    |

  2. A monoatomic ideal gas, initially at temperature T1, is enclosed in a ...

    Text Solution

    |

  3. The plots of intensity versus wavelength for three black bodies at tem...

    Text Solution

    |

  4. A block of ice at -10^@C is slowly heated and converted to steam at 10...

    Text Solution

    |

  5. Starting with the same initial conditions, an ideal gas expands from v...

    Text Solution

    |

  6. An ideal gas is initially at temperature T and volume V. Its volume is...

    Text Solution

    |

  7. Two monoatomic ideal gases 1 and 2 of molecular masses m(1) and m(2) r...

    Text Solution

    |

  8. Three rods made of the same material and having the same cross-section...

    Text Solution

    |

  9. In a given process on an ideal gas, dW=0 and dQ is negative, then for ...

    Text Solution

    |

  10. P-V plots for two gases during adiabatic processes are shown in the fi...

    Text Solution

    |

  11. An ideal gas is taken through the cycle AtoBtoCtoA, as shown in the fi...

    Text Solution

    |

  12. Which of the following graphs correctly represents the variation of be...

    Text Solution

    |

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

    Text Solution

    |

  14. The graph, shown in the adjacent diagram, represents the variation of ...

    Text Solution

    |

  15. Two rods, one of aluminium and other made of steel, having initial len...

    Text Solution

    |

  16. The PT diagram for an ideal gas is shown in the figure, where AC is an...

    Text Solution

    |

  17. 2kg of ice at 20^@C is mixed with 5kg of water at 20^@C in an insulati...

    Text Solution

    |

  18. Liquid oxygen at 50 K is heated to 300 K at constant pressure of 1 atm...

    Text Solution

    |

  19. An ideal gas expands isothermally from volume V(1) to V(2) and is then...

    Text Solution

    |

  20. Two identical conducting rods are first connected independently to two...

    Text Solution

    |