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Olympiad workbook
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Olympiad workbook
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NSEC
Chapter
Structure of Atom

Olympiad workbook · NSEC · Structure of Atom

When a certain metal was irradiated with light of frequency 3.2 ×...

When a certain metal was irradiated with light of frequency 3.2×1016 Hz3.2 \times 10^{16} \mathrm{~Hz}, the photoelectrons emitted had twice the kinetic energy as did the photoelectrons emitted when the same metal was irradiated with light of frequency 2.0×1016 Hz2.0 \times 10^{16} \mathrm{~Hz}. The v0v_0 of the metal is

Options

  1. A2.4×1016 Hz2.4 \times 10^{16} \mathrm{~Hz}
  2. B8.0×1016 Hz8.0 \times 10^{16} \mathrm{~Hz}
  3. C8.0×1015 Hz8.0 \times 10^{15} \mathrm{~Hz}
  4. D7.2×1016 Hz7.2 \times 10^{16} \mathrm{~Hz}

Correct answer

C. 8.0×1015 Hz8.0 \times 10^{15} \mathrm{~Hz}

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