Home
Class 11
CHEMISTRY
The work function (phi) of some metals i...

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 metal is one the
`{:("Metal",Li,Na,K,Mg,Cu,Ag,Fe,Pt,W),(phi eV,2.4,2.3,2.2,3.7,4.8,4.3,4.7,6.3,4.75):}`

A

3

B

4

C

5

D

6

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ATOMIC STRUCTURE

    AAKASH SERIES|Exercise Level - II (Type-I) (Lecture Sheet - 1 (Section-A : More than one correct answer type questions))|6 Videos

  • ATOMIC STRUCTURE

    AAKASH SERIES|Exercise Level - II (Type-I) (Lecture Sheet - 1 (Section - B : Linked comprehension Type questions))|4 Videos

  • ATOMIC STRUCTURE

    AAKASH SERIES|Exercise Level - I (MAIN) (Exercise - V (Electronic configuration , Aufbau principle, Pauli.s Exclusion principle and Hund.s rule ))|25 Videos

  • AROMATIC HYDROCARBONS

    AAKASH SERIES|Exercise OBJECTIVE EXERCIES - 3 (RECENT AIPMT/NEET QUESTIONS)|10 Videos

  • CHEMICAL BONDING

    AAKASH SERIES|Exercise OBJECTIVE EXERCISE -3 (RECENT AIPMT/NEET QUESTIONS )|39 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 300nm wavelength falls on the metal. The Metal is

The work function for a certain metal is 4.2 eV. Will this metal give photoelectric emission for incident radiation of wavelength 330 nm ?

The work function (W_(0)) of Li, K, Mg, Ag and Cu are 2.42, 2.25, 3.70, 4.80 eV respectively. The number of metals which undergo photoelectric effect if a radiation of wavelength 540 nm falls on them is (1 eV = 1.602xx10^(-19) J)

The work function of a metal is 4.2 eV. IF the radiation of 2000 Å falls on the metal, find the kinetic energy of the metal.

The work function of a metal is 4.2eV. If the radiation of 2000Å falls on the metal, find the kinetic energy of the metal

The work function of a photosensitive element is 2eV. Calculate the velocity of a photoelectron when the element is exposed to a light of wavelength 4xx10^(3) A.

|(1,4,2),(2,-1,4),(-3,7,-6)|=

The work functions (W_(0)) of K, Na, Li, Mg and Cu are 2.25 , 2.30 ,2.42 ,3.70 and 4.80 eV respectively. How many of these metals do not undergo photoelectric effect when a radiation of wavelength 450 nm is allowed to fall on them ? (1eV = 1.602 xx 10^(-19) J)

Work function of a metal is 3.0 eV. It is illuminated by a light of wavelength 3xx10^(-7) m. Calculate the maximum energy of the electron.

A metal forms a chloride with the formula MCl_2 . Formula of Phosphoric acid is H_3PO_4 . Formula of the Phosphate of the metal is

AAKASH SERIES-ATOMIC STRUCTURE-Level - I (MAIN) (Exercise - VI (Miscellaneous))
  1. Let A(n) be the area enclosed by n^(th) orbit in the H-atoms. The grap...

    Text Solution

    |

  2. Which of the following is incorrect for d-subshell (or) orbital

    Text Solution

    |

  3. Maximum probability of finding an electron along xy orbital is

    Text Solution

    |

  4. Which of the following relationship is correct ?

    Text Solution

    |

  5. How many electrons in atom can have n =4, =2, m=-2 and s = +(1)/(2) ?

    Text Solution

    |

  6. The quantum numbers of four electrons (e(1) " to " e(4)) are given bel...

    Text Solution

    |

  7. A metal surface having v(0) as threshold frequency is incident by ligh...

    Text Solution

    |

  8. Which statement are correct ?

    Text Solution

    |

  9. The work function (phi) of some metals is listed below. The number of ...

    Text Solution

    |

  10. The orbital angular momentum of 3p electrons is :

    Text Solution

    |

  11. H-atoms in ground state (13.6 eV) are excited by monochromatic radiati...

    Text Solution

    |

  12. Balmer series spectral lines are observed in visible region, in the sp...

    Text Solution

    |

  13. The potential energy of an electron in the hydrogen atom is -6.8 eV. I...

    Text Solution

    |

  14. Which of the following rules could explains the presence of three unpa...

    Text Solution

    |

  15. Number of waves produced by an electron in one complete revolution in ...

    Text Solution

    |

  16. The mass of a particle is 10^(10)g and its radius is 2 xx 10^(-4)cm. I...

    Text Solution

    |

  17. What is the shortest wavelength line in the Paschen series of Li^(2+) ...

    Text Solution

    |

  18. The radii of maximum probability for 3s, 3p and 3d electrons are in th...

    Text Solution

    |

  19. If the subsidiary quantum number of a subenergy level is 4, the maximu...

    Text Solution

    |

  20. The iron atom, how many electrons atom have n=3 and l= 2 ?

    Text Solution

    |