Calculate the speed of light in the Foucault Method if the frequency of mirror rotation CW is 1450 rev/sec, the frequency of CCW rotation is 1461 rev/s. Take the distance between the rotating mirror and fixed mirror to be 10.417 m. The distance between the lens L2 and the rotating mirror is 55.1 cm. The image displacement in the telescope when the mirror is going CW is 9.2 mm and the image displacement when the mirror is rotating CCW is 8.57 mm. The distance between two lenses L1 and L2 is 25.9 cm. The focal length of L1 is 48 mm.