MCQ
The work function of a photoelectric material is $3.3 \ eV .$ The threshold frequency will be equal to
  • A
    $8 \times 10^4 \mathrm{~Hz}$
  • B
    $8 \times 10^{56} \mathrm{~Hz}$
  • C
    $8 \times 10^{10} \mathrm{~Hz}$
  • $8 \times 10^{14} \mathrm{~Hz}$

Answer

Correct option: D.
$8 \times 10^{14} \mathrm{~Hz}$
$8 \times 10^{14} \mathrm{~Hz}$

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