Convex mirror has virtual focus or concave mirror has real focus.a) Trueb) False

b) False

A convex mirror has a virtual focus, not a concave mirror. In a convex mirror, parallel rays of light appear to diverge from a virtual focus point behind the mirror when extended backward. This is because a convex mirror is curved outward, causing the reflected rays to spread out. In contrast, a concave mirror can have a real or virtual focus depending on the location of the object. When the object is beyond the focal point of a concave mirror, the focus is real, and when the object is between the mirror and its focal point, the focus is virtual.