What is the relation between object distance and focal length?

What is the relation between object distance and focal length?

Object distance means what is the distance between pole and object. Image distance means when image is formed then the distance between pole and image is called image distance. Focal length is the distance between pole and the principal focus of the mirror.

Is magnification A vu?

The level of magnification is proportional to the ratio of v and u. An image that is double the size of the object would have magnification m=2. For both convex and concave lenses, these equations can be used to calculate image size and distance from the lenses.

What is M vu?

why magnification of mirror m= -v/u.

Why is magnification vu?

Explanation: Magnification of a lens or a mirror shows how magnified the image of an object is. In order to find the magnification, the object distance and the image distance is required. if v is the image distance and u is the object distance.

Is magnification of concave lens negative?

Concave lens always forms virtual images, so, magnification produced by concave lens is always positive. A concave lens always forms the image smaller than the object, so \begin{align*}|m|<1\end{align*}.

What is magnification positive or negative?

Magnification: The ratio of the height of the image to the height of the object is called the magnification of the spherical mirror. The magnification of the actual image will always be negative and the virtual image should always be positive.

What type of image is formed by thick converging lens?

Answer. Highly enlarged,real and inverted image is formed.

How will you determine the property image formed by the convex lens?

Properties of image formed by converging lens

1. The object distance is smaller than the focal length of the convex lens (do < f)
2. The object distance is equal to the focal length of the convex lens (do = f)
3. The object distance is greater than the focal length of the convex lens (do > f)