Home
Class 12
PHYSICS
Write Einstein's photoelectric equation....

Write Einstein's photoelectric equation.

Text Solution

Verified by Experts

`hv = w + 1/2 mv^(2), E = hv` energy of incident photon.
Promotional Banner

Topper's Solved these Questions

  • DUAL NATURE OF RADIATION AND MATTER

    SUBHASH PUBLICATION|Exercise TWO MARK QUESTIONS WITH ANSWERS|14 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    SUBHASH PUBLICATION|Exercise THREE MARK QUESTIONS WITH ANSWERS|5 Videos

  • CURRENT ELECTRICITY

    SUBHASH PUBLICATION|Exercise NUMERICAL PROBLEMS AND ANSWERS|29 Videos

  • ELECTRIC CHARGES AND FIELDS

    SUBHASH PUBLICATION|Exercise NUMERICALS WITH SOLUTIONS|21 Videos

Similar Questions

Explore conceptually related problems

Write Einsten.s photoelectric equation and point out any two characteristic properties of photons on which this equation is based.

(a) Why photoelectric effect can not be explained on the basis of wave nature of light ? Give reasons. (b) Write the basic features of photon picture of electromagnetic radiation on which Einstein's photoelectric equation is based.

According to Einstein's photoelectric equation the graph of K.E. of the photoelectron emitted from the metal versus the frequency of the incident radiation gives a straight line graph whose slope

Define the terms (i) 'cut-off voltage' and (ii) threshold frequency' in relation to the phenomenon of photoelectric effect. Using Einstein's photoelectric equation show how the cut-off voltage and threshold frequency for a given photosensitive material can be determined with the help of a suitable "plot" // "graph" .

Einstein’s photoelectric equation was experimentally verified by

Einstein photoelectric equation states that 1/2 mv^2=hf-hf_0 . In this equation v refers to

what is photoelectric effect?

SUBHASH PUBLICATION-DUAL NATURE OF RADIATION AND MATTER-NUMERICALS WITH SOLUTIONS
  1. Write Einstein's photoelectric equation.

    Text Solution

    |

  2. A photo has a wavelength of 5000 Å. Calculate its momentum.

    Text Solution

    |

  3. Calculate de Broglie wave length of an object of mass 10 kg hurled wit...

    Text Solution

    |

  4. The wave length of a photon is 5000 Å. Calculate its energy in electro...

    Text Solution

    |

  5. Calculate the frequency of light photon of energy 2.24 eV.

    Text Solution

    |

  6. Light of wavelength 2000 Å can just eject electrons from a metal surfa...

    Text Solution

    |

  7. Calculate the longest wavelength of incident light on platinum for whi...

    Text Solution

    |

  8. The photo electric threshold for a metal surface is 5800 Å. Calculate ...

    Text Solution

    |

  9. Calculate the retarding potential required to stop the photoelectrons ...

    Text Solution

    |

  10. The work function of copper is 4.57 eV. If radiation of 2500 Å is inci...

    Text Solution

    |

  11. A certain sodium lamp radiates 400 W of yellow light of wave length 58...

    Text Solution

    |

  12. Calculate the velocity of the photoelectrons emitted when a light of f...

    Text Solution

    |

  13. Ultraviolet radiations of wavelengths 800 Å and 700 Å when allowed to ...

    Text Solution

    |

  14. A photon of frequency 1.5xx10^(15) Hz is incident on a metal surface o...

    Text Solution

    |

  15. Find the (a) maximum frequency and (b) minimum wavelength of X- rays p...

    Text Solution

    |

  16. The photo electric cut off voltage in a certain experiment is 1.5V. Wh...

    Text Solution

    |

  17. In an experiment on photo electric effect, the slope of cut - off volt...

    Text Solution

    |

  18. The energy flux of sunlight reaching the surface of Earth is 1.388 xx1...

    Text Solution

    |

  19. Calculate the (1) de Broglie wavelength of electron (2) momentum & (3)...

    Text Solution

    |

  20. An electron and a photon each have a wavelength of 1.00 nm. Find (i) ...

    Text Solution

    |

  21. (a) For what K.E. of a neutron, will the associated de Broglie wavelen...

    Text Solution

    |