Home
Class 12
PHYSICS
According to Einstein's photoelectric eq...

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

A

depends on the intensity of the incident radiation

B

depends on the nature of the metal and also on the intensity of incident radiation

C

is same for all metals and independent of the intensity of the incident radiation

D

depends on the nature of the metal

Text Solution

Verified by Experts

The correct Answer is:
C

According to Einstein.s photoelectric equation

`KE_("max")=hv-phi_(0)`
Compring with the equation of straight line We get, slop of graph =h
Promotional Banner

Topper's Solved these Questions

  • ELECTRONS & PHOTONS

    MODERN PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS (LEVEL-III)|9 Videos
  • ELECTROMAGNETIC WAVES

    MODERN PUBLICATION|Exercise RECENT COMPETITIVE QUESTIONS|4 Videos
  • ELECTROSTATICS

    MODERN PUBLICATION|Exercise RECENT COMPETITIVE QUESTIONS |39 Videos

Similar Questions

Explore conceptually related problems

A graph of stopping potential of a photo sensitive metal with the frequency of incident radiation is plotted. What does the slope of this curve represent?

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" .

X-rays fall on a photosensitive surface to cause photoelectric emission. Assuming that the work function of the surface can be neglected, find the relation between the de-Broglie wavelength ( lambda ) of the electrons emitted to the energy ( E_(v) ) of the incident photons. Draw the nature of the graph for lambda as a function of E_(v) .

Light emitted during the de excitation of electron from n = 3 to n = 2, when incident on a metal, photoelectrons are just emitted from that metal. In which of the following deexcitations photoelectric effect is not possible ?

Calculate the retarding potential required to stop the photoelectrons emitted from a metal surface of work function 1.2 eV , when light of frequency 6.3xx 10^(14) Hz is incident on it

The K.E. of the most energetic electrons emitted from a metallic surface is doubled when the wavelength, lambda of the incident radiation is reduced from 400 nm to 310 nm. The work function of the metal is

MODERN PUBLICATION-ELECTRONS & PHOTONS-RECENT COMPETITIVE QUESTIONS
  1. According to Einstein's photoelectric equation the graph of K.E. of th...

    Text Solution

    |

  2. An electron is moving in an orbit of a hydrogen atom from which there ...

    Text Solution

    |

  3. v(1) is the frequency of the series limit of Lyman series, v(2) is te ...

    Text Solution

    |

  4. The de-Broglie wavelength of the electron in the ground state of the h...

    Text Solution

    |

  5. The photoelectric threshold wavelength for silver in lambda(0).The ene...

    Text Solution

    |

  6. An electron of mass m(e) and a proton of mass m(p) are moving with the...

    Text Solution

    |

  7. Pick out the wrong statement.

    Text Solution

    |

  8. A proton and an alpha particle are accelerated through the same potent...

    Text Solution

    |

  9. In hydrogen atom , electron excites from ground state of higher energy...

    Text Solution

    |

  10. An alpha - particle and a proton moving with the same kinetic energy e...

    Text Solution

    |

  11. X- rays, gamma rays and microwaves travelling in vacuum have

    Text Solution

    |

  12. If n is the orbit number of the electron in a hydrogen atom , the corr...

    Text Solution

    |

  13. A charged particle with a velocity 2 xx 10^3 ms^-1 passes undeflected ...

    Text Solution

    |

  14. Maximum velocity of the photoelectron emitted by a metal is 1.8 xx 10^...

    Text Solution

    |

  15. lamda(1) and lamda(2) are used to illuminated the slits. beta(1) and b...

    Text Solution

    |

  16. What is the de Broglie wavelength of the electron accelerated through ...

    Text Solution

    |

  17. The maximum kinetic energy of emitted photoelectrons depends on

    Text Solution

    |

  18. Find the de-Broglie wavelength of an electron with kinetic energy of 1...

    Text Solution

    |

  19. Light of two different frequencies whose photons have energies 1 eV an...

    Text Solution

    |

  20. The best waves for emission of electrons from a surface :

    Text Solution

    |