Home
Class 12
PHYSICS
Two photocathodes are illuminated by the...

Two photocathodes are illuminated by the light emitted by a single source. The dependence of photocurrent versus voltages between cathode and anode is shown by curves 1 and 2 as shown in the figure. (I/I_(max) represents ratio of photocurrent to saturation current):

A

Photocathode 1 has higher work function than 2

B

Photocathode 2 has higher work function than 1

C

Saturation current may be different for 1 and 2

D

saturation current must be same for 1 and 2

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • PHOTOELECTRIC EFFECT AND MATTER WAVES

    PHYSICS GALAXY - ASHISH ARORA|Exercise Unsolved numerical problems|42 Videos

  • PHOTOELECTRIC EFFECT AND MATTER WAVES

    PHYSICS GALAXY - ASHISH ARORA|Exercise Numerical MCQs|60 Videos

  • NUCLEAR PHYSICS AND RADIOACTIVITY

    PHYSICS GALAXY - ASHISH ARORA|Exercise Concptual MCQs|48 Videos

  • THERMODYNAMICS LAWS & SPECIFIC HEATS OF GASES

    PHYSICS GALAXY - ASHISH ARORA|Exercise Practice Exercise 3.4|11 Videos

Similar Questions

Explore conceptually related problems

In the circuit as shown in figure, the ratio of current i_1//i_2 is

In photoelectric experiment the plot between anode potential and photoelectric current is shown in figure 2.3.1. Which of the following is correct:

From the given between current I and voltage V shown in figure , indentify the portion corresponding to negative resistance

Two equal capacitors are as shown in the two figure I and 2.The ratio of the equvalent capacitance in the two diagrams is.

Figure represents the graph of photo current I versus applied voltage (V). The maximum kinetic energy of the emitted photoelectrons is

Graph showing the variation of current versus voltage for a material GaAs is shown in figure. Identify the region of (i) negative resistance (ii) where Ohm's law is obeyed.

The voltage V and current I v graphs for a conductor at two different temperatures T_(1) and T_(2) are shown in the figure. The relation between T_(1) and T_(2) is

Determine the currents I_(1),I_(2) and I_(3) from the network shown in figure.

PHYSICS GALAXY - ASHISH ARORA-PHOTOELECTRIC EFFECT AND MATTER WAVES-Advance MCQ
  1. The angular momentum of an electron in an orbit is quantized because:

    Text Solution

    |

  2. The intensity of light falling on a phototube is increased while keepi...

    Text Solution

    |

  3. Two photocathodes are illuminated by the light emitted by a single sou...

    Text Solution

    |

  4. Photoelectric effect supports quantum nature of light because (a) th...

    Text Solution

    |

  5. The momentum of a single photon of red light of fequency 400 xx 10^(12...

    Text Solution

    |

  6. When a monochromatic point source of light is at a distance of 0.2 m...

    Text Solution

    |

  7. In a photoelectric experiment, the collector plate is at 2.0 V with re...

    Text Solution

    |

  8. A small mirror of area A and mass m is suspended in a vertical plane b...

    Text Solution

    |

  9. When photons of energy 4.25 eV strike the surface of metal A, the ejec...

    Text Solution

    |

  10. In photoelectric effect, stopping potential depends on

    Text Solution

    |

  11. Thefigure shows the results of an experiment involving photoelectric e...

    Text Solution

    |

  12. the photoelectric effect can not be explained by the wave theory of li...

    Text Solution

    |

  13. A non-monochromatic light is used in an experiment on photoelectric ef...

    Text Solution

    |

  14. In a phtoelectron effect energy of photon is directly proportional to ...

    Text Solution

    |

  15. Suppose frequency of emitted photon is f(0) when the electron of a sta...

    Text Solution

    |

  16. A small miror is suspended by a thread as shownin figure 2.35. A short...

    Text Solution

    |

  17. When monochromatic light falls on a photosensitive material, the numbe...

    Text Solution

    |

  18. Mark the correct statement(s) related to the stopping potential differ...

    Text Solution

    |

  19. If the wavelength of light in an experiment on photo electric effect i...

    Text Solution

    |

  20. Photoelectric effect supports quantum nature of light because

    Text Solution

    |