BY Team Aakash Byju's

CBSE Exam Notes

Magnification Formula Detailed Explanation:

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Explanation

Magnification is a measure of magnifying or enhancing the supposed size, not the physical size of an object, but in the case of mirrors and lenses.

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Definition

In optics, magnification is the ratio of an object height to the image height or object distance to the image distance. It is designated by M.

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It confirms the possession of the image without sketching the Ray diagrams.

It is a numerical value that gives out information about the properties of an image.

Where hi = height of image ho = height of object u = object distance v = image distance

Note: The following natured images will be cast based on magnification value. If M = positive value (Real and inverted image) M = negative value (virtual and erect image)

M>1 (Enlarged image) M<1 (Diminished image)

M = 1 (same size image compare to object size) M = 0 (point sized image)