Home
Class 12
PHYSICS
The stopping potential (V(0)) versus fre...

The stopping potential `(V_(0))` versus frequency (v) plot of a substance is shown in figure, the threshold wavelength is

A

`5 xx 10^14 m`

B

6000Å

C

5000Å

D

Cannot be estimated from given data

Text Solution

Verified by Experts

The correct Answer is:
B
`lamda_0 = (c )/(v_0) = (3 xx 10^8)/(5 xx 10^14) = 6 xx 10^(-7) m = 6000 Å`
Promotional Banner

Topper's Solved these Questions

  • DUAL NATURE OF RADIATION AND MATTER

    DISHA PUBLICATION|Exercise EXERCISE -2 : CONCEPT ALLPLICATOR|30 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    DISHA PUBLICATION|Exercise EXERCISE -2 : CONCEPT ALLPLICATOR|30 Videos

  • CURRENT ELECTRICITY

    DISHA PUBLICATION|Exercise EXERCISE-2 Concept Applicator|23 Videos

  • ELECTRIC CHARGES AND FIELDS

    DISHA PUBLICATION|Exercise Exercise - 2 : Concept applicator|24 Videos

Similar Questions

Explore conceptually related problems

The stopping potential vs frequency plot for a substance is shown in the figure. The work function of the substance is

In a photoelectric effect experiment, the graph of stopping potential V versus reciprocal of wavelength obtained is shown in the figure. As the intensity of incident radiation is increased :

The stopping potential V_(0) (in volt) as a function of frequency (v) for a sodium emitter, is shown in the figure. The work function of sodium, from the data plotted in the figure, will be: (Given : Planck’s constant) (h) = 6.63 xx10^(-34)Js" electron charge "e=1.6xx10^(-19)C )

The graph between the stopping potential V_(0) and frequency v for two different metal plates P and Q are shown in the figure. Which of the metals has greater threshold wavelength and work function.

When a metal is illuminated by light of wavelength lambda , the stopping potential is V_@ and for wavelength 2lambda , it is 3V_@ .Then the threshold wavelength is ?

The figure shows different graphs between stopping potential (V_(0)) and frequency (v) for photosensitive surface of cesium , potassium , sodium and lithium. The plots are parallel. Correct ranking of the targets according to their work function greatest forst will be

The graph shows variation of stopping potential V_(0) versus frequency of incident radiation v for two photosensitive metals A and B . Which of two metals has higher threshold frequency and why?

Draw a graph between stopping potential and the frequency of two metals A and B having threshold frequencies v_0 and 2v_0 .

DISHA PUBLICATION-DUAL NATURE OF RADIATION AND MATTER-EXERCISE -1 : CONCEPT BUILDER
  1. Which one of the following graphs represents the variation of maximum ...

    Text Solution

    |

  2. A source of light is placed at a distance of 50 cm from a photocell an...

    Text Solution

    |

  3. The stopping potential (V(0)) versus frequency (v) plot of a substance...

    Text Solution

    |

  4. The work functions of metals A and B are in the ratio 1 : 2. If light ...

    Text Solution

    |

  5. When a metal surface is illuminated by light wavelengths 400 nm and 25...

    Text Solution

    |

  6. In a photoelectric experiment, with light of wavelength lamda , the fa...

    Text Solution

    |

  7. Two identical photocathodes receive light of frequencies f1 and f2. If...

    Text Solution

    |

  8. In a photoelectric effect measurement, the stoppingg potential for a g...

    Text Solution

    |

  9. A photo cell is illuminated by a small bright source placed 1m away Wh...

    Text Solution

    |

  10. For intensity I of a light of wavelength 5000 Å the photoelectron satu...

    Text Solution

    |

  11. The maximum velocity of the photoelectrons emitted from the surface is...

    Text Solution

    |

  12. In an experiment on photoelectric effect, a student plots stopping pot...

    Text Solution

    |

  13. A point source causes photoelectric effect from a small metal plate. W...

    Text Solution

    |

  14. In a photoelectric experiment, the wavelength of the incident light is...

    Text Solution

    |

  15. When a point light source, of power W, emitting monochromatic light of...

    Text Solution

    |

  16. Find the number of photons emitted per second by a 25 W source of mono...

    Text Solution

    |

  17. X-rays are

    Text Solution

    |

  18. The ratio of the energy of an X - ray photon of wavelength 1 Å to that...

    Text Solution

    |

  19. X-ray beam can be deflected

    Text Solution

    |

  20. White X-rays are called 'white' due to the fact that:

    Text Solution

    |