Summary. The mirror formula is 1f=1v+1u. where f is the focal length of the mirror, u is the distance of the object from the mirror and v is the distance of the image from the mirror. The magnification m is given by m=−vu.
What is mirror formula answer?
The relation between focal length of mirror, distance of the object and distance of the image is known as mirror formula. It is given by. u1+v1=f1.
What is the mirror formula Class 10?
The mirror equation 1 v + 1 u = 1 f holds good for concave mirrors as well as convex mirrors.
What is mirror formula Class 9?
The formula for a mirror is: 1 v + 1 u = 1 f.
What is mirror formula and lens formula?
A lens is usually curved from either one or both surfaces. Mirror formula is 1/f = 1/v + 1/u. Lena formula is 1/f = 1/v – 1/u.
What is mirror formula write and prove it?
The distance of the image from the pole of the mirror is called the image distance (v). The distance of the principal focus from the pole is called the focal length (f). There is a relationship between these three quantities given by the mirror formula which is expressed as 1v+1u=1f.
What is mirror formula and magnification Class 10?
Find Magnification Given Object Distance = u = –3 Image Distance = v = –12 So Magnification m is given by m = (− )/ m = (−(−12))/((−3)) m = (−12)/3 m = −4 u and v are negative because they are in front of the mirror. Concepts. Reflection of Light. Spherical Mirrors. Parts of Concave and Convex Mirror.
What is mirror Class 8?
A mirror is defined as reflecting surface and can be explained by the law of reflection, which states that when a ray of light is made to fall on the reflecting surface, the reflected ray has its angle of reflection, incident ray, and the reflected ray are normal to the surface at a point of incidence.
What is U and V in Lens formula?
In optics, the relationship between the distance of an image (v), the distance of an object (u), and the focal length (f) of the lens is given by the formula known as Lens formula.
Which is lens formula?
Let’s see how to use lens formula (1/v-1/u= 1/f) to locate images without having to draw ray diagrams.
What is the formula of mirror and magnification?
The magnification, m produced by a spherical mirror can be expressed as: m=h′h where h′ is height of image and h is height of object. It is also equal to the negative of the ratio of the image distance(v) to object distance (u).
What is mirror in science?
Introduction. mirror, in optics, a reflecting surface that forms an image of an object when light rays coming from that object fall upon it (see reflection). Usually mirrors are made of plate glass, one side of which is coated with metal or some special preparation to serve as a reflecting surface.
What is a mirror Class 6?
Mirror is an object which reflects light. Shiny and polished surfaces usually act as mirrors. Due to reflection, image of an object is seen in the mirror. Mirror changes the direction of light falling on it.
What is mirror in microscope?
Mirrors in the microscope’s interior are used to focus light to make the microscope more compact, or to make it easier to make the microscope binocular. On low-cost compound microscopes, the mirror is used to focus light from underneath the slide through the microscope’s objective lens.
What is mirror magnification?
Magnification by Spherical Mirrors
Magnification is the increase in the image size produced by spherical mirrors with respect to the object size. It is the ratio of the height of the image to the height of the object and is denoted as m.
What is M vu?
Magnification can also be related to the image distance and object distance; therefore it can also be written as: m = -v/u. Where v is the image distance and u is the object distance.
How do you derive a mirror formula?
Mirror Formula Derivation
From the figure given above, it is obvious that the object AB is placed at a distance of U from P which is the pole of the mirror. From the diagram we can also say that the image A1B1 is formed at V from the mirror. This was the derivation of mirror formula.
What is the formula of concave mirror?
1/f= 1/u + 1/v. This equation is referred to as the mirror formula.
REFLECTION AT CURVED SURFACES.
| Position of the object | Image formation by concave mirror | Image formation by convex mirror |
|---|---|---|
| Object between F and P | Image formed is virtual, upright and magnified. | Image formed is virtual, upright and diminished. |
What is physics Di?
m = hi/ho = –di/do. THEORY. In the above equations, do is the distance between the object and the center of the lens, di is the distance between the image and the center of the lens, ho is the object height, hi is the image height, and f is the focal length of the lens.
Why is U V 2f?
The values of u and v will be same for point A. So the coordinates of Point A must be (- 2f, 2f), because for a convex lens, when u =-2f, v=2f. Hence , half the value of either coordinate of A (i.e., distance OB) gives the focal length of the convex lens.
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). Created by Mahesh Shenoy.
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