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As a start I assumed Planck angular frequency which is the reciprocal of Planck time as the frequency upper limit, but not so sure. On the other hand, is there a lower limit? Can we consider the reciprocal of our universe as a theoretical limit which is not yet limited, or just assume 0? I am just curious to know if you have any ideas with thanks.

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  • $\begingroup$ The frecuency of what? $\endgroup$ – jinawee Nov 14 '13 at 14:15
  • $\begingroup$ The photon frequency for instance. $\endgroup$ – Tariq Mar 25 '14 at 18:43
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    $\begingroup$ Possible duplicates: physics.stackexchange.com/q/16391/2451 and links therein. $\endgroup$ – Qmechanic Nov 30 '14 at 13:26