Question

write a numerical on linear magnification ( lens) with solutions​

Answer 1

Answer:

Magnification is the process of appearing to enlarge an object for purposes of visual inspection and analysis. Microscopes, binoculars and telescopes all magnify things using the special tricks embedded in the nature of light-transducing lenses in a variety of shapes.

Linear magnification refers to one of the properties of convex lenses, or those that show an outward curvature, like a sphere that has been severely flattened. Their counterparts in the optical world are concave lenses, or those that are curved inward and bend light rays differently than convex lenses.

Principles of Image Magnification

When light rays traveling in parallel are bent as they pass through a convex lens, they are bent toward, and thus become focused on, a common point on the opposite side of the lens. This point, F, is called the focal point, and the distance to F from the center of the lens, denoted f, is called the focal length.

The power of a magnifying lens is just the inverse of its focal length: P = 1 / f. This means that lenses that have short focal lengths have strong magnification capabilities, whereas a higher value of f implies lower magnifying power.

Linear Magnification Defined

Linear magnification, also called lateral magnification or transverse magnification, is just the ratio of size of the image of an object created by a lens to the object's true size. If the image and the object are both in the same physical medium (e.g., water, air or outer space), then the lateral magnification formula is the size of the image divided by the size of the object:

M = \frac{-i}{o}M=o−i.