If Planck’s constant were larger would photons of light that have the same frequency be more energetic or less energetic?


The energy of a wave is described by $E=hf$. If frequency is held constant and $h$ is increased, then $E$ must also increase. So it would be more energetic.

  • $\begingroup$ Since the energy of a photon and the frequency of a photon are proportional does that mean that since the energy is increasing the frequency would also increase? $\endgroup$ – Inperitus Mar 13 '17 at 23:52
  • $\begingroup$ @Inperitus What do you mean by "since the energy is increasing"? All it means is that a photon with a higher energy will have a higher frequency, and vice versa. $\endgroup$ – Blavius Mar 13 '17 at 23:54
  • $\begingroup$ You said that "If frequency is held constant" so I assumed you meant that f is not increasing, but when E increases doesn't that also mean that f is increasing? $\endgroup$ – Inperitus Mar 14 '17 at 0:09
  • 2
    $\begingroup$ @Inperitus Normally yes, since $h$ is a constant, but in this context I held $f$ constant instead and increased $h$ because that's what the question was asking about. $\endgroup$ – Blavius Mar 14 '17 at 0:12

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