What is focal length? October 10, 2024July 15, 2020 by Admin The distance between the pole and the principal focus of a spherical mirror is called the focal length of the mirror. Related Posts:Which of the following correctly describes a…How mirror can be identified by observing the values…What is focal distance?Why is convex mirror called a diverging mirror?Explain how even if a bigger distance is covered…Bohrs Atomic Model