The equation E = pc is valid:

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Target Exam

CUET

Subject

Physics

Chapter

Dual Nature of Radiation and Matter

Question:

The equation E = pc is valid:

Options:

for an electron

for a photon

for a photon as well as for an electron

neither for an electron nor for a photon

Correct Answer:

for a photon

Explanation:

According to relativistic formula

$E^2(pc)^2+(m_0c^2)^2$

For photon, $m_0=0$

$∴E=pc$