Home
Class 12
PHYSICS
Variation of radiant energy emitted by s...

Variation of radiant energy emitted by sun, filament of tungsten lamp and welding arc as a function of its wavelength is shown in figure. Which of the following option is the correct match?

A

Sun-`T_(1)`, tungsten filament- `T_(2)` , welding arc-`T_(3)`

B

Sun-`T_(2)`, tungsten filament- `T_(1)` , welding arc-`T_(3)`

C

Sun-`T_(3)`, tungsten filament- `T_(2)` , welding arc-`T_(1)`

D

Sun-`T_(3)`, tungsten filament- `T_(1)` , welding arc-`T_(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
The temperature of sun is a higher than that of welding arc which in turn greater than tungsten filament.
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

Potential Energy U(x) and associated force F(x) bears the relation F(x)=-(d)/(dx)U(x) . Dependence of potential energy of a two - particle system separation x between them is shown in the following figure. Which of the following graphs shows correct variation in assoicated force F(x) with x ?

The ionization energy of the electron in the hydrogen atom in its ground state is 13.6 eV. The atoms are excited to higher energy levels to emit radiation of 6 wavelengths. During which of the following transitions will the maximum wavelength radiation be emitted ?

A tennis ball dropped on a barizoontal smooth surface , it because back to its original postion after hiting the surface the force on the bell during the collision is propertional to the length of compression of the bell . Which one of the following skethes desches discribe the variation of its kinetic energy K with time 1 mass apporiandly ? The figure as only illistrative and not to the scale .

The potential energy function for a particle executing linear SHM is given by V(x) =1/2kx^(2) wher e k is the force constant of the oscillator (figure). For k = 0.5 N/m ,the graph ofV(x) versus x is shown in the figure . A particle of total energy E turns back when it reaches x = pm x_(m) . If V and K indicate the PE and KE , respectively of the particle at x = +x_(m) , then which of the following is correct ?

While conduction the Young's double slit experiment, a student replaced the two slits with a large opaque plate in the x-y plane containing two small holes that act as two coherent point sources (S_(1),S_(2)) emitting light of wavelength 600nm. The student mistakenly placed the screen parallel to the x-z plane (for zgt0) at a distance D=3 m from the mid-point of S_(1) , S_(2) , as shown schematically in the figure. The distance between the sources d=0.6003 mm . The origin O is at the intersection of the screen and the line joining S_(1)S_(2) . Which of the following is (are) true of the intensity pattern of the screen?

The potential energy U(x) of a particle moving along x- axis is shown in figure. Which one of the following graphs represents the variation of kinetic energy of this particle if its total mechanical enery is E_(0)

A star like the sun has several bodies moving around it at different distances. Consider that all of them are moving in circular orbits. Letr be the distance of the body from the centre of the star and let its linear velocity be v, angular velocity , omega kinetic energy K, gravitational potential energy U, total energy E and angular momentum I. As the radius r of the orbit increases, determine which of the above quantities increase and which ones decrease. As shown in figure, where a body of mass m is revolving around a star of mass M. Linear velocity of the body,

Light of wavelength lambda_(ph) falls on a cathode plate inside a vacuum tube as shown in the figure .The work function of the cathode surface is phi and the anode is a wire mesh of conducting material kept at distance d from the cathode. A potential different V is maintained between the electrodes. If the minimum de Broglie wavelength of the electrons passing through the anode is lambda_(e) which of the following statement (s) is (are) true?

The graph between the stopping potential (V_(0)) and ((1)/(lambda)) is shown in the figure phi_(1) , phi_(2) and phi_(3) are work function , which of the following is /are correct

An experimental setup of verification of photoelectric effect is shown in the diagram. The voltage across the electrode is measured with the help of an ideal voltmetar, and which can be varied by moving jockey 'J' on the potentiometer wire. The battery used in potentiometer circuit is of 20 V and its internal resistance is 2omega . The resistance of 100 cm long potentiometer wire is 8 omega . The photo current is measured with the help of an ideal ammeter. Two plates of potassium oxide of area 50 cm^(2) at separation 0.5 mm are used in the vacuum tube. Photo current in the circuit is very small so we can treat potentiometer circuit an indepdent circuit. The wavelength of various colours is as follows : |{:("Light",underset("Violet")(1),underset("Blue")(2),underset("Green")(3),underset("Yellow")(4),underset("Orange")(5),underset("Red")(6)),(lambda "in" Årarr,4000-4500,4500-5000,5000-5500,5500-6000,6000-6500,6500-7000):}| When other light falls on the anode plate the ammeter reading remains zero till, jockey till, jockey is moved from the end P to the middle point on the wire PQ. Thereafter the deflection is recorded in the ammeter. The maximum kinetic energy of the emitted electron is :

ALLEN -GEOMETRICAL OPTICS-EXERCISE - 05 (B)
  1. Water of volume 2 litre in a container is heated with a coil of 1kW at...

    Text Solution

    |

  2. In which of the following process, convection does not take place pri...

    Text Solution

    |

  3. Variation of radiant energy emitted by sun, filament of tungsten lamp ...

    Text Solution

    |

  4. Calorie is defined as the amount of heat required to raise temperature...

    Text Solution

    |

  5. A spherical body of area A and emissivity e=0.6 is kept inside a perfe...

    Text Solution

    |

  6. An ideal gas is expanding such that PT^(2)= constant. The coefficient ...

    Text Solution

    |

  7. Two non-reactive monoatomic ideal gases have their atomic masses in th...

    Text Solution

    |

  8. Two rectangular blocks, having identical dimensions, an be arranged ei...

    Text Solution

    |

  9. One mole of a monatomic ideal gas is taken along two cyclic processes ...

    Text Solution

    |

  10. A student is performing an experiment using a resonance column and a t...

    Text Solution

    |

  11. Parallel rays of light of intensity I=912 WM^-2 are incident on a sphe...

    Text Solution

    |

  12. A water cooler of storages capacity 120 liters can cool water at a con...

    Text Solution

    |

  13. The ends Q and R of two thin wires, PQ and RS, are soldered (joined) t...

    Text Solution

    |

  14. A gas is enclosed in a cylinder with a movable frictionless piston. It...

    Text Solution

    |

  15. One mole of an ideal monatomic gas is taken round the cyclic process A...

    Text Solution

    |

  16. A solid body X of heat capacity C is kept in an atmosphere whose tempe...

    Text Solution

    |

  17. Two moles of an ideal monoatomic gas, initially at pressure p1 and vol...

    Text Solution

    |

  18. Two moles of an ideal monoatomic gas is taken through a cycle ABCA as ...

    Text Solution

    |

  19. An ice cube of mass 0.1 kg at 0^@C is placed in an isolated container ...

    Text Solution

    |

  20. A monoatomic ideal gas of two moles is taken through a cyclic process ...

    Text Solution

    |