Home
Class 12
CHEMISTRY
The wavelength (lambda) of monochromatic...

The wavelength `(lambda)` of monochromatic light coming from some light sources is listed below. How many of these sources will be able to exhibit photoelectric effect if incident upon surface of Li metal (work function , `Phi`=2.4 eV).

A

5

B

4

C

6

D

3

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • D BLOCK ELEMENTS

    RESONANCE ENGLISH|Exercise EXERCISE-3 PART-III|37 Videos
  • ELECTRO CHEMISTRY

    RESONANCE ENGLISH|Exercise PHYSICAL CHEMITRY (ELECTROCHEMISTRY)|53 Videos

Similar Questions

Explore conceptually related problems

The work function (phi) of some metals is listed below . The number of metals which will show photoelectric effect when light of 300 nm wavelength falls on the metal is :

What will be the minimum frequency of light source to get photocurrent, from a metal surface having work function 2 eV ?

Find the threshold wavelength of light that would produce photoelectrons for a silver surface . The work function for silver is 4.8 eV

Monochromatic light of wavelength 198 nm is incident on the surface of a metal, whose work function is 2.5 eV. Calculate the stopping potential.

Monochromatic light incident on a metal surface emits electrons with kinetic energies from zero to 2.6 eV. What is the least energy of the incident photon if the tightly bound electron needs 4.2eV to remove?

Two identical light sources S_1 and S_2 emit light of same wavelength lambda . These light rays will exhibit interference if

Monochromatic photons of energy 3.3 eV are incident on a photo sensitive surface of work function 2.4 eV. , maximum velocity of photoelectron is

Will photoelectrons be emitted from a copper surface, of work function 4.4 eV , when illuminated by a visible light?

The work function for a metal is 4eV. To emit a photoelectron of zero velocity from the surface of the metal, the wavelength of incident light should be :

The work function for a metal is 4eV. To emit a photoelectron of zero velocity from the surface of the metal, the wavelength of incident light should be :

RESONANCE ENGLISH-DPP-QUESTIONS
  1. Which of the following statements is correct?

    Text Solution

    |

  2. The energy required to remove an electron from metal X is E = 3.31 xx ...

    Text Solution

    |

  3. The wavelength (lambda) of monochromatic light coming from some light ...

    Text Solution

    |

  4. For which of the following species, Bohr theory doesn't apply

    Text Solution

    |

  5. If radius of second stationary orbit (in Bohr's atom) is R then radius...

    Text Solution

    |

  6. The radius of the first orbit of H-atom is r. then the radius of the f...

    Text Solution

    |

  7. The number of Br^- Ions in 2.1 g CaBr2 is [NA=6xx10^23]

    Text Solution

    |

  8. If the mass of 10^22 molecules of a hydrocarbon is about 1.2 g, then t...

    Text Solution

    |

  9. The value of R will be maximum for which of the following gases :

    Text Solution

    |

  10. Volume occupied by an ideal gas at one atmospheric pressure and 0^@C i...

    Text Solution

    |

  11. Which of the following exert highest pressure at 300 K and 4 L volume ...

    Text Solution

    |

  12. Match the List with the appropriate List Il and select the correct ans...

    Text Solution

    |

  13. Select the correct option

    Text Solution

    |

  14. 11.2 litre of a gas at STP weighs 14 g The gas could not be

    Text Solution

    |

  15. x g Urea (NH2CONH2) contains y total number of atoms 4x g Acetic acid ...

    Text Solution

    |

  16. Air in a room is separated in two regions in volume ratio of 4: 1 by a...

    Text Solution

    |

  17. Find the average molar mass of a gaseous mixture in g/mole, which cont...

    Text Solution

    |

  18. The triad of nuclei that is isotonic is

    Text Solution

    |

  19. "A^(+2)" is isoelectronic with N2O and has (Z+1) neutron (Z is atomic ...

    Text Solution

    |

  20. Select the correct statement

    Text Solution

    |