The image of an object formed by a plane mirror is due to which optical phenomenon?

Name the spherical mirror used as:
$(a)$ $1.$ Shaving mirror,
$2.$ Rear-view mirror in vehicles,
$3.$ Reflector in searchlights.
$(b)$ Write any three differences between a real and virtual image.

When a concave mirror produces a virtual and magnified image of an object,what is the object distance?

The angle between an incident ray and the reflected ray is $70^{\circ}$ as shown in the figure. What is the value of $\theta$?

$A$ convex mirror can be used to see a large image of a small object.

The radius of curvature of a spherical mirror is half of the focal length.