Home
Class 12
PHYSICS
The work function of a substance is 4.0 ...

The work function of a substance is 4.0 eV. The longest wavelength of light that can cause photoelectron emission from this substance is approximately equal to

A

540 nm

B

400 nm

C

310 nm

D

220 nm

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • NTA NEET TEST 22

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

  • NTA NEET TEST 64

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

The work function of a substance is 4.0 eV The longest wavwlength of light that can cause photoelectron emission from this substance is approximately

The work function of a substance is 4.0 eV The longest wavwlength of light that can cause photoelectron emission from this substance is approximately

The work functio of a substance is 4.0 eV . The longest wavelength of light that can cause photoelectron emission form this substance is approximately :

The work function of a substance is 3.68 eV. The longest wavelength of light that can cause photoelectrons emission from this substance is approximately

The work function of a substance is 4.0 eV. The longest wavelength of light that can cause photoelectron emission from this substance is approximately. (a) 540 nm (b ) 400nm (c ) 310 nm (d) 220 nm

The work function of a substance is "3.0eV" .The longest wavelength of light that can cause the emission of photoelectrons from this substance is approximately:

The work function of a substance is 1.6 ev. The longest wavelength of light that can produce potoemisson form the substance is

The work function for a metal surface is 2.0 eV. Determine the longest wavelength that will eject photoelectrons from the metal surface.

NTA MOCK TESTS-NTA NEET TEST 25-PHYSICS
  1. If at some instant of time, the displacement of a simple harmonic osci...

    Text Solution

    |

  2. A vertical capillary of radius r is brought in constant with water of ...

    Text Solution

    |

  3. A closed compartment containing gas is moving with some acceleration i...

    Text Solution

    |

  4. When a ceiling fan is switched on, it makes 10 rotations in the first ...

    Text Solution

    |

  5. Let I be the moment of interia of a uniform square plate about an axis...

    Text Solution

    |

  6. The shorted wavelength of X- rays emitted from an X- rays tube depends...

    Text Solution

    |

  7. An X - ray tube produces a continuous spectrum of radiation with its s...

    Text Solution

    |

  8. The half - life of I ^ (131) is 8 days. Given a sample of I^(131) at ...

    Text Solution

    |

  9. The maximum kinetic energy of photo electrons emitted from a surface w...

    Text Solution

    |

  10. The work function of a substance is 4.0 eV. The longest wavelength of ...

    Text Solution

    |

  11. At absolute zero , Si acts as

    Text Solution

    |

  12. The logic gate given below represents a

    Text Solution

    |

  13. In the middle of the depletion layer of a reverse - biased p - n junc...

    Text Solution

    |

  14. How does the angle of minimum deviation of a glass prism vary, if the...

    Text Solution

    |

  15. A ball is dropped from a height of 20 m above the surface of water in ...

    Text Solution

    |

  16. The way the fringe pattern changes when the screen is moved away from ...

    Text Solution

    |

  17. In Young's double slit experiment, the 10th maximum of wavelength lamb...

    Text Solution

    |

  18. When unpolarised light beam is incident from air onto glass ( n = 1.5)...

    Text Solution

    |

  19. Write down the output at X for the inputs A = 0, B = 0 and A = 1, B = ...

    Text Solution

    |

  20. Two blocks of masses 10 kg and 4 kg are connected by a spring of negli...

    Text Solution

    |