Why spoon image upside down

The image will be real and inverted on a concave mirror if the object is placed beyond the focus. If the object location is between the focus and the pole then the image formed is virtual and erect.

Concave mirrors can produce both real and virtual images; they can be upright if virtual or inverted if real ; they can be behind the mirror if virtual or in front of the mirror if real ; they can also be enlarged, reduced, or the same size as object.

Reflection from a Concave Mirror As the object moves towards the mirror the image location moves further away from the mirror and the image size grows but the image is still inverted. Concave Mirror Examples Concave mirrors are used in headlights and torches. The shaving mirrors are also concave in nature since these mirrors can produce enlarged clear images. Doctors use concave mirrors as head mirrors to have a clearer view of eyes, noses, and ears.

Concave lenses are used in telescope and binoculars to magnify objects. As a convex lens creates blurs and distortion, telescope and binocular manufacturers install concave lenses before or in the eyepiece so that a person can focus more clearly. Definition of Convex A convex shape is the opposite of a concave shape. The definition of convex is curving outwards like the edge of a circle. An example of convex is the shape of the lens in eyeglasses.

Equivalently, a convex set or a convex region is a subset that intersects every line into a single line segment possibly empty. For example, a solid cube is a convex set, but anything that is hollow or has an indent, for example, a crescent shape, is not convex. A convex set is a set of points such that, given any two points A, B in that set, the line AB joining them lies entirely within that set.

Intuitively, this means that the set is connected so that you can pass between any two points without leaving the set and has no dents in its perimeter. Definition 3. Figure 3. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

Create a free Team What is Teams? Learn more. Why does your reflection suddenly turn upside down while slowly walking away from a curved mirror? Ask Question. Asked 9 years, 2 months ago. Active 2 years ago. Viewed 30k times. Improve this question. Lucas Lucas 1, 8 8 gold badges 21 21 silver badges 29 29 bronze badges. Add a comment. Active Oldest Votes. Improve this answer. John Rennie John Rennie k gold badges silver badges bronze badges. The curved surfaces of a spoon act like mirrors.

The front part of the spoon is concave while the back side of the spoon is convex. Concave mirrors, on the other hand, can have real images. If the object is further away from the mirror than the focal point, the image will be upside-down and real—meaning that the image appears on the same side of the mirror as the object. The toy car image is smaller and inverted when using a concave mirror. In passing through this point, rays from the upper part of your face are reflected downward, while those from the lower part are reflected upward.