The energy of a quantum of frequency $10^{15} \ Hz$ and $h = 6.6 \times 10^{-34} \ J \cdot s$ will be:

  • A
    $6.6 \times 10^{-19} \ J$
  • B
    $6.6 \times 10^{-12} \ J$
  • C
    $6.6 \times 10^{-49} \ J$
  • D
    $6.6 \times 10^{-41} \ J$

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