The work function for silver surface is 4.73 eV. Find the minimum frequency that light must have to eject electrons from this surface (h=6.63×10-34 J.s)?

  • (A) 1.14×1023Hz
  • (B) 1.14×1015Hz
  • (C) 3.14×1023Hz
  • (D) None of the above

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  • Diamond has?
    • (A) Three valence electrons
    • (B) Two valence electrons
    • (C) One valence electro
    • (D) Four valence electrons

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