Home
Class 12
PHYSICS
Assertion : Photoelectric current depend...

Assertion : Photoelectric current depends on the intensity of incident light.
Reason : Number of photoelectrons emitted per second is directly proportional to intensity of incident radiation.

A

Work function

B

Frequency of radiations

C

Intensity of radiation

D

Stopping potential

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • DUAL NATURE OF RADIATION AND MATTER

    AAKASH SERIES|Exercise EXERCISE-I ASSERTION AND REASON|4 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    AAKASH SERIES|Exercise EXERCISE=II|42 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    AAKASH SERIES|Exercise PRACTICE EXERCISEX|42 Videos

  • CURRENT ELECTRICITY

    AAKASH SERIES|Exercise EXERCISE - IA|2 Videos

  • ELECTRIC CHARGES AND FIELDS

    AAKASH SERIES|Exercise Practice Exercise|57 Videos

Similar Questions

Explore conceptually related problems

As the intensity of incident light increases

The number of electrons emitted by a surface exposed to light is directly proportional to

In photoelectric effect, the number of photoelectrons emitted is proportional to :

In photoelectric effect, the number of photoelectrons emitted is proportional to :

The kinetic energy of photoelectrons emitted by a photosensitive surface depends on the internsity of the incident radiation

When a high frequency electromagnetic radiation is incident on a metallic surface, electrons are emitted from the surface. Energy of emitted photoelectrons depends only on the frequency of incident electromagnetic radiation and the number of emitted electrons depends only on the intensity of incident light. Einstein's protoelectron equation [K_(max)=hv-phi} correctly explains the PE, where upsilon= frequency of incident light and phi= work function. Q. The slope of the graph between stopping potential and frequency is [here h is the Planck's constant and e is the charge of an electron] is

When a high frequency electromagnetic radiation is incident on a metallic surface, electrons are emitted from the surface. Energy of emitted photoelectrons depends only on the frequency of incident electromagnetic radiation and the number of emitted electrons depends only on the intensity of incident light. Einstein's protoelectron equation [K_(max)=hv-phi] correctly ecplains the PE, where upsilon= frequency of incident light and phi= work function. Q. For photoelectric effect in a metal, the graph of the stopping potential V_0 (in volt) versus frequency upsilon (in hertz) of the incident radiation is shown in Fig. The work function of the metal (in eV) is.

If intensity of incident light is increased in photo electric effect then which of the following is true ?

Assertion (A) : On increasing the frequency of light larger number of photoelectrons are emitted . Reason (R) : The number of electrons emitted depends on the intensity of incident light.

Explain photoelectric effect Explain the effect of increase of intensity of incident radiations on photoelectrons emitted by a photo-tube.

AAKASH SERIES-DUAL NATURE OF RADIATION AND MATTER-EXERCISE-I
  1. The cathode of a photoelectric cell is changed such that the work fun...

    Text Solution

    |

  2. Stopping potential depends on planks constant (h), current (I), univer...

    Text Solution

    |

  3. Assertion : Photoelectric current depends on the intensity of incident...

    Text Solution

    |

  4. An electrochemical cell converts energy to energy.

    Text Solution

    |

  5. Dendogram is based on

    Text Solution

    |

  6. For the oxidation of ferric oxalate to CO(2), 18F of electricity is re...

    Text Solution

    |

  7. Photo electric effect can be explained only by assuming that light A...

    Text Solution

    |

  8. Consider the two following statements I and II, and identify the corre...

    Text Solution

    |

  9. The number of electrons emitted by a surface exposed to light is direc...

    Text Solution

    |

  10. A 200 W sodium street lamp emits yellow light of wavelength 0.6 μm. As...

    Text Solution

    |

  11. According to Einstein's photoelectric equation, the graph of kinetic e...

    Text Solution

    |

  12. A photocell is illuminated by a small bright source placed 1 m away . ...

    Text Solution

    |

  13. Assertion : Photoelectric effect supports the quantum nature of light....

    Text Solution

    |

  14. Pick out wrong statement

    Text Solution

    |

  15. Consider an infinite distribution of point masses (each of mass m) pla...

    Text Solution

    |

  16. Statement (A): Every photon striking the metal and colliding with the ...

    Text Solution

    |

  17. The slope of the graph drawn between stopping potential and frequency ...

    Text Solution

    |

  18. The principle of photo cell is

    Text Solution

    |

  19. The correct statement is :

    Text Solution

    |

  20. Flowers are unisexual in :

    Text Solution

    |