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Trajectory of a photon due to a constant/uniform gravitational force [closed]

I have a small problem of physics linked to a basic ray tracing algorithm. My problem is the following : At $t = 0$, a photon at the position $(x_0 = x_\text{min},y_0 = y_\text{min})$ with the ...
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2answers
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Does a photon exert a gravitational pull?

I know a photon has zero rest mass, but it does have plenty of energy. Since energy and mass are equivalent does this mean that a photon (or more practically, a light beam) exerts a gravitational pull ...