The distance from the focus of the parabola y2 = 10x to the collimator is () A. 52B. 5C. 152D. 10

The distance from the focus of the parabola y2 = 10x to the collimator is () A. 52B. 5C. 152D. 10

2p = 10, P = 5, and the distance from the focus to the collimator is p. so the distance from the focus to the collimator of the parabola y2 = 10x is 5, so choose B