Dual Nature of Radiation and Matter

Question: The energy of a photon is $E = hv$ and the momentum of photon $p = \frac{h}{\lambda }$, then the velocity of photon will be



1) E/p
2) Ep
3) ${\left( {\frac{E}{p}} \right)^2}$
4) $3 \times {10^8}m/s$
Solution: Explanation: No Explanation
Photon and Photoelectric Effect

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