Question

define magnification.

Answer 1

magnification produced by a lens is defined as the ratio of size of image to the size of object M= hi / ho ....

Answer 2

QUESTION :-

Define magnification

ANSWER :-

Definition of magnification

The ratio of size of image ( I) to the size of object ( O) is called the linear or transverse magnification.

i.e, m = size of image / size of object

Note :-

The sign of M is taken as follows :-

✒️ Positive for virtual images because it is always erect.

✒️ Negative for real images because real images are inverted.

In terms of object and image distances magnification is written as :-

m = v / u

In terms of f and v the expression is :-

m = (v - f) / f

& In terms of f and u the expression is :-

m = f / ( u - f)

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Thank you for the question !