Spherical Mirror:
A spherical mirror is a curved mirror that has a spherical shape. It can be either concave or convex, depending on the curvature of its surface.

Plane Mirror:
A plane mirror, on the other hand, is a flat mirror with a reflective surface. It reflects light without any distortion, maintaining the same size and shape of the object being reflected.

Differences:

Curvature:
- Spherical Mirror: It has a curved surface with a specific radius of curvature.
- Plane Mirror: It has a flat surface with no curvature.

Reflection:
- Spherical Mirror: The reflection occurs on the curved surface, resulting in the formation of an image.
- Plane Mirror: The reflection occurs on the flat surface, producing a virtual image that appears to be as far behind the mirror as the object is in front of it.

Focal Point:
- Spherical Mirror: It has a focal point, which is the point where parallel rays of light converge or appear to converge after reflection. In a concave mirror, the focal point is in front of the mirror, while in a convex mirror, it is behind the mirror.
- Plane Mirror: It does not have a focal point. The reflected rays of light are parallel to each other and do not converge.

Magnification:
- Spherical Mirror: The magnification of the image formed by a spherical mirror can vary depending on the position of the object relative to the mirror. It can be magnified or diminished.
- Plane Mirror: The magnification of the image formed by a plane mirror is always 1, which means the image has the same size as the object.

Field of View:
- Spherical Mirror: The field of view of a spherical mirror is limited due to its curved shape. Depending on the size and curvature, it may provide a wider or narrower field of view.
- Plane Mirror: The field of view of a plane mirror is wider since it is flat and reflects light uniformly.

Applications:
- Spherical Mirror: Spherical mirrors are commonly used in telescopes, cameras, and makeup mirrors.
- Plane Mirror: Plane mirrors are used in everyday objects like bathroom mirrors, dressing mirrors, and rear-view mirrors.

In summary, the main differences between spherical and plane mirrors lie in their curvature, reflection properties, focal points, magnification, field of view, and applications. Spherical mirrors have a curved surface, form images, have focal points, and can vary in magnification and field of view. On the other hand, plane mirrors have a flat surface, produce virtual images, do not have focal points, have a magnification of 1, and offer a wider field of view.