Consider the limit of the function(adsbygoogle = window.adsbygoogle || []).push({});

mcc/sqrt(1-uu/cc)

for u=c. (m rest mass, u speed of the particle with rest mass m relative to a given inertial reference frame.

Please tell me what is its physical meaning. Do you see there a connection with the energy of a photon?

Thanks in advance for your answer.

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# A limit problem in SR

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