Research Article

Remarks on Null Geodesics of Born-Infeld Black Holes

Figure 7

The graph shows the critical radius 𝑟 𝑐 for the Born-Infeld black hole as a function of the nonlinear parameter 𝛽 . Here, 𝑀 = 1 . 0 6 4 0 5 and 𝑄 = 1 .
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