Home
Class 12
PHYSICS
In a photoelectric experiment, the poten...

In a photoelectric experiment, the potential difference V that must be maintained between the illuminated surface and the collector so as just to prevennt any electron from reaching the collector is determined for different frequencies f of the incident illumination. the graph obtained is shown in the figure. the maximum kinetic energy of the electrons emitted at frequency `f_(1)` is

A

`hf_(2)`

B

`(V_(1))/((f_(1)-f_(0)))`

C

`h(f_(1)-f_(0))`

D

`eV_(1)(f_(1)-f_(0))`

Text Solution

Verified by Experts

The correct Answer is:
C

`K_(max)=hf_(1)-phi_(0)=hf_(1)-hf_(0)=h(f_(1)-f_(0))`.
Promotional Banner

Topper's Solved these Questions

  • ELECTRONS AND PROTONS

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET CORNER|19 Videos
  • ELECTRONS AND PROTONS

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise Exercise 1|50 Videos
  • ELECTROMAGNETIC INDUCTION

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET CONER|34 Videos
  • ELECTROSTATICS

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET Corner|29 Videos

Similar Questions

Explore conceptually related problems

The variation of photocurrent with collector potential for different frequencies of incident radiation v_1,v_2,v_3 is as shown in the the graph , then

In a photoelectric experiment, the potential required to stop the ejection of electrons from cathode is 4V. What is the value of maximum kinetic energy of emitted Photoelectrons?

Photoelectric emission is observed from a surface for frequencies v_1 and v_2 of the incident radiation (v_1 gt v_2) . If the maximum kinetic energies of the photoelectrons in two cases are in ratio 1 : K then the threshold frequency v_0 is given by.

In the study of a photoelectric effect the graph between the stopping potential V and frequency v of the incident radiation on two different metals P and Q is shown in fig. (i) which one of two metals have higher threshold frequency (ii) Determine the work function of the metal which has greater value (iii) Find the maximum kinetic energy of electron emitted by light of frequency 8xx10^(14) Hz for this metal.

If photons of frequency mu are incident on the surfaces of metals A & B of threshold frequencies mu/2 and mu/3 respectively,the ratio of the maximum kinetic energy of electrons emitted from A to that from "B" is

In a photoelectric effect experiment, the maximum kinetic energy of the emitted electrons is 1eV for incoming radiations of frequency v_(0) and 3eV for incoming radiation of frequency 3v_(0)//2 . What is the maximum kinetic energy of the electrons emitted for incomming radiation of frequency 9v_(0)//4 ?

The graph of Fig. shows the variation of photoelectric current with collector plate potential for different frequencies of incident radiations. (i) Which physical parameter is kept constant for the three curves? (ii) Which frequency (v_1,v_2 or v_3) is the highest?

Photoelectric emission is observed from a metal surface for frequencies v_(1) and v_(2) incidents radiations (v_(1) gt v_(2)) . If the maximum kinetic energy of the two electrons are in the ratio 1:2 , then how is threshold frequency (v^(@)) experssed.

In an experiment on photoelectric effect the frequency f of the incident light is plotted against the stopping potential V_(0) . The work function of the metal is given by ( e is the electronic charge)

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-ELECTRONS AND PROTONS-Exercise 2
  1. The act of photoelectric effect taking place with a certain photosensi...

    Text Solution

    |

  2. A point source of light is used in a photoelectric effect. If the sour...

    Text Solution

    |

  3. If the frequency of light in a photoelectric experiment is doubled the...

    Text Solution

    |

  4. The cathode of a photoelectric cell is changed such that the work func...

    Text Solution

    |

  5. In a photoelectric experiment, the potential difference V that must be...

    Text Solution

    |

  6. what should be the velocity of an electron so that its momentum becom...

    Text Solution

    |

  7. From the figure describing photoelectric effect we may infer correctly...

    Text Solution

    |

  8. Cathode rays enter a magnetic field makin oblique angle withh the line...

    Text Solution

    |

  9. The work function for aluminium is 4.125 eV. The cut-off wavelength fo...

    Text Solution

    |

  10. According to Einstein's photoelectric equation, the plot of the maximu...

    Text Solution

    |

  11. Photon and electron are given same energy (10^(-20) J). Wavelength ass...

    Text Solution

    |

  12. Match column I (fundamental experiment) with column II (its conclusion...

    Text Solution

    |

  13. When a certain metallic surface is illuminated with monochromatic ligh...

    Text Solution

    |

  14. Which of the following figure represents the variation of particle mom...

    Text Solution

    |

  15. Threshold wavelength for lithium metal is 6250 Å. For photo emission, ...

    Text Solution

    |

  16. In a photoelectric experiment the relation between applied potential d...

    Text Solution

    |

  17. Photoelectric effect experiments are performed using three different m...

    Text Solution

    |

  18. Light of two different frequencies whose photons have energies 1eV and...

    Text Solution

    |

  19. Light of intensity 10^(-5)Wm^(-2) falls on a sodium photocell of surfa...

    Text Solution

    |

  20. Work function for caesium metal is 2.14 eV. Let a beam of light of fre...

    Text Solution

    |