Question 1 of 29beginner🧠 RememberVery Short1 mark
Define the principal focus of a concave mirror.
Correct Answer
The principal focus of a concave mirror is the point on the principal axis where rays parallel to the principal axis meet after reflection.
Exercise: QUESTIONS | Q: 1 | (Page Page 9)
For More Understanding
Explanation
The provided text states that when a number of rays parallel to the principal axis fall on a concave mirror, the reflected rays all meet or intersect at a specific point on the principal axis. This specific point of intersection is defined as the principal focus.