show the p,f of a convex mirror
Answers
Answer:
Image Formation by Convex Mirrors
The definitions of the principal axis, centre of curvature $C$, radius of curvature $R$, and the vertex $V$, of a convex mirror are analogous to the corresponding definitions for a concave mirror. When parallel light-rays strike a convex mirror they are reflected such that they appear to emanate from a single point $F$ located behind the mirror, as shown in Fig. 74. This point is called the virtual focus of the mirror. The focal length $f$ of the mirror is simply the distance between $V$ and $F$. As is easily demonstrated, in the paraxial approximation, the focal length of a convex mirror is half of its radius of curvature.
Figure 74: The virtual focus of a convex mirror.
\begin{figure}
\epsfysize =3.5in
\centerline{\epsffile{convex.eps}}
\end{figure}
There are, again, two alternative methods of locating the image formed by a convex mirror. The first is graphical, and the second analytical.
According to the graphical method, the image produced by a convex mirror can always be located by drawing a ray diagram according to four simple rules:
An incident ray which is parallel to the principal axis is reflected as if it came from the virtual focus $F$ of the mirror.
An incident ray which is directed towards the virtual focus $F$ of the mirror is reflected parallel to the principal axis.
An incident ray which is directed towards the centre of curvature $C$ of the mirror is reflected back along its own path (since it is normally incident on the mirror).
An incident ray which strikes the mirror at its vertex $V$ is reflected such that its angle of incidence with respect to the principal axis is equal to its angle of reflection.
Explanation:
please mark as brainlist answer