# What is the focal length of a plane mirror?

The focal length of a plane mirror is infinity. The focal length of a spherical mirror is determined from the radius of curvature R as f = R/2. A plane mirror has an infinite radius of curvature, s... Read More »

Top Q&A For: What is the focal length of a plane mirror

## What is the focal length of a plane mirror that is 8 ft. tall?

The focal length of a plane (flat) mirror is infinity, because rays of light that are traveling parallel to one another will never converge after hitting a plane mirror. The focal length of a mirro... Read More »

## If a mirror has a focal length of 15cm is it a concave mirror?

Concave mirrors curve inwards like a bowl. When rays of light parallel to the axis of a concave mirror strike its surface, they are all reflected through the focal point. The distance from the mirr... Read More »

## Is there a focal point for a plane mirror?

Flat plane mirrors do not have a focal point because they do not focus light rays as do concave (inwardly curved) mirrors. Convex (outwardly curved) mirrors also have a focal point, which is behind... Read More »

## What is the focal length of a mirror?

The distance from the center of a mirror to the focal point is the focal length. The focal point is the point along the central axis (a line perpendicular to the center of the mirror) where light t... Read More »

Related Questions