Dynamical Effect of Electromagnetic Wave in Spherical Symmetrical Finsler Spacetime

In this paper, the dynamical effect of electromagnetic wave is researched in spherical symmetrical Finsler spacetime. The results show that the effect of tangent vector, which can be determined by the angular momentum and energy of observed particles, can’t change the gravitational lens, but can influence the radar echo delay in spherical symmetrical Finsler spacetime. On the other hand, we also use the first order WKB method to study the electromagnetic perturbation with tangent vector effect of Finsler black hole.