Home
Class 12
PHYSICS
The number of photoelectrons emitted for...

The number of photoelectrons emitted for light of a frequency `v` (higher than the threshold frequency `V_(0)`) is proportional to

A

threshold frequency `(v_(0))`

B

intensity of light

C

frequency of light (v)

D

`v-v_(0)`

Text Solution

Verified by Experts

The correct Answer is:
B

The number of photoelectrons decide the photocurrent. Assuming that the number of electrons emitted depends on the number of photons incident, the number of phtoelectrons depend on the intensity of light.
Promotional Banner

Topper's Solved these Questions

  • NTA TPC JEE MAIN TEST 84

    NTA MOCK TESTS|Exercise PHYSICS |30 Videos
  • NTA TPC JEE MAIN TEST 94

    NTA MOCK TESTS|Exercise PHYSICS |30 Videos

Similar Questions

Explore conceptually related problems

The number of photoelectrons emitted per unit time depends on (v gt v_(0))

The kinetic energy of electrons ejected by using light having frequency equal to threshold frequency (v_(0)) is:

The work functions of metals A and B are in the ratio 1 : 2 . If light of frequencies f and 2 f are incident on the surfaces of A and B respectively , the ratio of the maximum kinetic energy of photoelectrons emitted is ( f is greater than threshold frequency of A , 2f is greater than threshold frequency of B )

Photoelectric emission is observed from a metallic surface for frequencies v_(1) and v_(2) of the incident light. If the maximum value of kinetic energies of the photoelectrons emitted in the two cases are in the ratio n:1 then the threshold frequency of the metallic surface is

Calcualte the maximum kinetic energy of photoelectrons emitted where as light of freqency 2 xx 10^(16)Hz is irradiated on a metal surface with threshold frequency (v_(0)) equal to 8.68 xx10^(15)Hz .

Calculate the maximum kinetic energy of photoelectrons emitted when a light of freqency 2xx10 ^(16) Hz is irradiated on a metal surface with threshold frequency (v_0) equal to 8.68 xx 10^(15) Hz.

Photoelectric emission is observed from a surface for frequencies v_(1) and v_(2) of incident radiations (v_(1) gt v_(2)) . If the maximum kinetic energy of photoelectrons in the two cases are in the ratio of 2 : 1 then threshold frequency v_(0) is given by.

Photoelectric emission is observed from a metallic surface for frequencies v_(1) and v_(2) of the incident light rays (v_(1) gt v_(2)) . If the maximum values of kinetic energy of the photoelectrons emitted in the two cases are in the ratio of 1 : k , then the threshold frequency of the metallic surface is

NTA MOCK TESTS-NTA TPC JEE MAIN TEST 93-PHYSICS
  1. To send 10% of the main current through a moving coil galvanometer of ...

    Text Solution

    |

  2. The number of photoelectrons emitted for light of a frequency v (highe...

    Text Solution

    |

  3. When current in a coil changes from 5 A to 2 A in 0.1 s, average volta...

    Text Solution

    |

  4. A circuit ABCD is held perpendicular to the uinform magnetic field of ...

    Text Solution

    |

  5. Calculate the momentum transferred to a surface when a radiation of en...

    Text Solution

    |

  6. To get anoutput I from the circuit shown in the figure, the input must...

    Text Solution

    |

  7. Find the potential difference between A and B as shown in the figure

    Text Solution

    |

  8. A positively charged ball hangs from a long silk thread. Electric fiel...

    Text Solution

    |

  9. The radii of two planets are respectively R(1) and R(2) and their dens...

    Text Solution

    |

  10. One litre of oxygen at a pressure of 1 atm and two litres of nitrogen ...

    Text Solution

    |

  11. The B-H curve (i) and (ii) shown in the figure is associated with

    Text Solution

    |

  12. The coil of a moving coil galvanometer is wound over a metal frame in...

    Text Solution

    |

  13. The equation of a wave on a string of linear mass density 0.04 kg m^(-...

    Text Solution

    |

  14. Two particles A and B execute simple harmonic motions of period T and ...

    Text Solution

    |

  15. The speed of light ( c), gravitational constant (G) and plank's consta...

    Text Solution

    |

  16. P is the atmospheric pressure and the pressure at the bottom of a tank...

    Text Solution

    |

  17. Four rods of equal length l and mass m each forms a square as shown in...

    Text Solution

    |

  18. A uniform rod AB of mass m and length l is at rest on a smooth horizon...

    Text Solution

    |

  19. A room at 20^@C is heated by a heater of resistence 20 ohm connected t...

    Text Solution

    |

  20. The efficiency of a Canot engine working between 800K and 500K is

    Text Solution

    |