How do you determine if an image is upright or inverted?

When the image is on the same side of the mirror as the object and the image distance is positive then the image is said to be real and inverted. When the image of the object is behind the mirror and the image distance is negative, the image is said to be virtual and upright.

Under which conditions does a concave mirror produce an enlarged and inverted image?

Only a concave mirror can be used to produce an inverted image; and this only occurs if the object is located at a position of more than one focal length from the concave mirror. Plane mirrors never produce inverted images. 6.

What is the relation between focal length and radius of curvature of a concave mirror does the same relation holds for a convex mirror?

Answer Expert Verified Relation between the focal length and radius of curvature : For a spherical mirror of small aperture to its radius of curvature, the focal length of the mirror is one half of the radius of curvature of the mirror. This relation can be proved for both the mirrors that is concave and convex.

What image is formed on a concave mirror if the object is exactly one focal length from the mirror?

The answer: there is no image!! Surprisingly, when the object is located at the focal point, there is no location in space at which an observer can sight from which all the reflected rays appear to be diverging. An image is not formed when the object is located at the focal point of a concave mirror.

What are concave mirrors?

Concave mirrors A concave mirror, or converging mirror, has a reflecting surface that is recessed inward (away from the incident light). Concave mirrors reflect light inward to one focal point. They are used to focus light.

How do you know if a mirror is concave or convex?

To figure out what the signs mean, take the side of the mirror where the object is to be the positive side. Any distances measured on that side are positive. Distances measured on the other side are negative. f, the focal length, is positive for a concave mirror, and negative for a convex mirror.

For what position of an object a concave mirror forms a an enlarged and inverted image is a real image of equal size of the object?

When an object is placed at the centre of curvature of a concave mirror, it forms a real image of a size equal to that of the object.

Under which conditions do both convex and concave mirrors form virtual images?

Virtual images are always formed by convex mirrors and are formed by concave mirrors when the object is placed in front of F.

What is the relationship between radius of curvature and focal length of a concave mirror?

The relation between focal length (f) and radius of curvature (R) of a spherical mirror is that the focal length is equal to half of the radius of curvature i.e. f=R2.

What is the relation between radius of curvature and focal length of a concave mirror Class 7?

In this relation, the aperture of the mirror is assumed to be small. Radius of curvature is observed to be equal to twice the focal length for spherical mirrors with small apertures. Hence R = 2f .

How concave and convex mirrors are formed?

A concave mirror will only produce an upright image if the object is located in front of the focal point. Convex Mirror : Made by grinding a thick plane mirror into a bulging shape , using appropriate tools. Concave Mirror : made up of Acryl Plastic and is grounded into shape with the help of machines.

What are the rules in Ray diagramming?

Rules for drawing Ray Diagram in Lenses

• Rule 1 – Ray parallel to principal axis will pass through focus. For a convex lens ,
• Rule 2 – Ray passing through focus will become parallel to principal axis. For a convex lens,
• Rule 3 – Ray passing through Optical Center will emerge without deviation.

What are the two rules of reflection for concave mirrors?

To draw these diagrams, we will have to recall the two rules of reflection for concave mirrors: 1 Any incident ray traveling parallel to the principal axis on the way to the mirror will pass through the focal point… 2 Any incident ray passing through the focal point on the way to the mirror will travel parallel to the principal axis… More

How do you find the coordinates of a concave mirror image?

Two concave mirrors each of radius of curvature 40 cm are placed such that their principal axis are parallel to each other and at a distance of 1 cm to each other. Both the mirrors are at a distance of 100 cm to each other. Consider first reflection at M1 and then at M2, find the coordinates of the image thus formed.

Do concave mirrors produce real or virtual images?

While plane mirrors always produce virtual images, concave mirrors are capable of producing both real and virtual images. As shown above, real images are produced when the object is located a distance greater than one focal length from the mirror. A virtual image is formed if the object is located less than one focal length from the concave mirror.

Where does principal ray 1 go in a concave mirror?

Principal ray 1 goes from point Q and travels parallel to the optical axis. The reflection of this ray must pass through the focal point, as discussed above. Thus, for the concave mirror, the reflection of principal ray 1 goes through focal point F, as shown in part (b) of the figure.