Question

why does a concave mirror have a real principal focus, while a convex mirror has a virtual principal focus?

Answer 1

$\huge\mathbb{ANSWER}}$

$\texttt{concave mirror:-}$

➜the points at which rats parallel to principal axis coming from infinity converge after being reflected from concave mirror is called the principal focus of concave mirror

$\texttt{convex mirror :}}}$

➜ the point which rays parallel to principal axis coming from infinity appear to converge after being reflected from Convex mirror is called the principal focus of convex mirror