**Category:**

Research Papers

**Sub-Category:**

Relativity Theory

**Date Published:**

May 03, 2021

**Keywords:**

photon; Newton's law of universal gravitation; redshift; Newton's second law of motion; static-weak gravitational field; Schwarzschild radius; photon mass

**Abstract:**

It is shown that the derivation of the equation for the calculation of the Gravitational Red-Shift does not account the time during which the photon wavelength changes under static-weak gravitational field. If we solve this task in the frame of the idea of the possibility of using Newton's classical law of universal gravitation and the second law of Newton to explain the dynamic changes of the photon momentum even if its rest mass = 0, we get a new equation for the calculation of Gravitational Red-Shift that takes into account the time. This new mathematical model allows us to calculate gravitational red-shift of the electromagnetic radiation photons with no recourse to the theory of general relativity in the Newtonian limit, i.e. when r is sufficiently large compared to the Schwarzschild radius. This raises grave doubts over the introduction of the measurement of the gravitational red-shift in the list of crucial tests of the theory of general relativity.

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