What is the formula of mirror equation?
The sign conventions for the given quantities in the mirror equation and magnification equations are as follows: f is + if the mirror is a concave mirror. f is – if the mirror is a convex mirror. di is + if the image is a real image and located on the object’s side of the mirror.
What are the 6 cases of a concave mirror?
There are six possibilities of the position of object in the case of concave mirror.Object at infinity.Object between infinity and centre of curvature (C)Object at centre of curvature (C)Object between centre of curvature (C) and Principal focus (F)Object at Principal Focus (F)
How do you find the image size in a concave mirror?
Since the image in fornt of the concave mirror, its nature will be “Real and Inverted”. Thus, the size of image is 2 cm long. The minus sign here shows that the image is formed below the principle axis. That is, it is a real and inverted image.
What is V and U in mirror formula?
In a spherical mirror: The distance between the object and the pole of the mirror is called the object distance(u). The distance between the image and the pole of the mirror is called Image distance(v). The distance between the Principal focus and pole of the mirror is called Focal Length(f).
Is V positive in concave mirror?
And for image distance, V in lens it is taken as positive in Convex lens since image is formed on +X side. It is taken as negative in Concave lens since image is formed in -X side of the Cartesian. In Concave mirror V is taken as positive and negative for convex mirror.
What is magnification of concave mirror?
In a concave mirror, the magnification is the ratio of the height of the image to the height of the object. Hence, if the image is real, the magnification is negative and if the image is virtual, the magnification is positive.
Where are concave mirrors used?
Concave mirrors are used in reflecting telescopes. They are also used to provide a magnified image of the face for applying make-up or shaving.
Do concave mirrors magnify?
The upright images produced by concave mirrors (when object is in front of F) are magnified images. And the upright images produced by plane mirrors have the same size as the object.
Is concave lens?
A concave lens is a lens that possesses at least one surface that curves inwards. It is a diverging lens, meaning that it spreads out light rays that have been refracted through it. A concave lens is thinner at its centre than at its edges, and is used to correct short-sightedness (myopia).
What is C in concave mirror?
All concave and convex mirror ray diagrams can be constructed from knowledge of the behavior of these two rays. In the animation above, a right-side-up object is located above the principal axis between the center of curvature (C) and the focal point (F).
What is infinity in concave mirror?
(a) Object at infinity:- Since parallel rays coming from the object converge at principal focus, F of a concave mirror; after reflection. Hence, when the object is at infinity the image will form at F.
What is magnification formula?
Let’s explore the magnification formula (M= v/u) for lenses and see how to find the image height and its nature (whether it’s real or virtual).
What is a mirror in physics?
A mirror is a device that contains a surface used to reflect light. Because mirrors do not usually absorb much light, most of the light is redirected upon contact with the mirror and the object’s overall quality is usually preserved in the new image.