List of top Physics Questions on Spherical Mirrors asked in AP EAPCET

A dentist uses a mirror of focal length \(24\,\text{mm}\). He views a cavity in the tooth of a patient by holding the mirror at a distance of \(16\,\text{mm}\) from the cavity. The magnification is

An object placed in front of a concave mirror at a distance of $x\text{ cm}$ from the pole gives a 3 times magnified real image. If it is moved to a distance of $(x + 5)\text{ cm}$, the magnification of the image becomes 2. The focal length of the mirror is: